One may argue that because this material world is created by the Lord, He is therefore responsible for its condition. Certainly He is indirectly responsible for the creation and maintenance of this material world, but He is never responsible for the different conditions of the living entities. The Lord's creation of this material world is compared to a cloud's creation of vegetation. In the rainy season the cloud creates different varieties of vegetation. The cloud pours water on the surface of the earth, but it never touches the earth directly. Similarly, the Lord creates this material world simply by glancing over the material energy. This is confirmed in the Vedas: "He threw His glance over the material nature, and thus there was creation." In the Bhagavad-gītā it is also confirmed that simply by His transcendental glance over the material nature, He creates different varieties of entities, both movable and immovable, living and dead.
The creation of the material world can therefore be taken as one of the pastimes of the Lord; it is called one of the Lord's pastimes because He creates this material world whenever He desires. This desire of the Supreme Personality of Godhead is also extreme mercy on His part because it gives the conditioned souls another chance to develop their original consciousness and thus go back to Godhead. Therefore no one can blame the Supreme Lord for creating this material world.
(Krsna Book).

When males and females touch each other's bodies, their lusty desires naturally awaken. It appears from this verse that there are similar sensations in spiritual bodies. Both Lord Ananta and the women giving Him pleasure had spiritual bodies. Thus all sensations originally exist in the spiritual body. This is confirmed in the Vedānta-sūtra: janmādy asya yataḥ [SB 1.1.1]. Śrīla Viśvanātha Cakravartī Ṭhākura has commented in this connection that the word ādi means ādi-rasa, the original lusty feeling, which is born from the Supreme. However, spiritual lust and material lust are as completely different as gold and iron. Only one who is very highly elevated in spiritual realization can understand the lusty feelings exchanged between Rādhā and Kṛṣṇa, or between Kṛṣṇa and the damsels of Vraja. Therefore, unless one is very experienced and advanced in spiritual realization, he is forbidden to discuss the lusty feelings of Kṛṣṇa and the gopīs. However, if one is a sincere and pure devotee, the material lust in his heart is completely vanquished as he discusses the lusty feelings between the gopīs and Kṛṣṇa, and he makes quick progress in spiritual life.
(Srimad Bhagavatam--5:25:5--purport).

The Supreme Lord relinquished the body which He manifested to diminish the burden of the earth. Just like a magician, He relinquishes one body to accept different ones, like the fish incarnation and others.
The Supreme Lord Personality of Godhead is neither impersonal nor formless, but His body is nondifferent from Him, and therefore He is known as the embodiment of eternity, knowledge and bliss. In the Brhad-vaisnava Tantra it is clearly mentioned that anyone who considers the form of Lord Krsna to be made of material energy must be ostracized by all means. And if by chance the face of such an infidel is seen, one must clean himself by jumping in the river with his clothing. The Lord is described as amrta, or deathless, because He has no material body. Under the circumstances, the Lord's dying or quitting His body is like the jugglery of a magician. The magician shows by his tricks that he is cut to pieces, burnt to ashes or made unconscious by hypnotic influences, but all are false shows only. Factually the magician himself is neither burnt to ashes nor cut to pieces, nor is he dead or unconscious at any stage of his magical demonstration. Similarly, the Lord has His eternal forms of unlimited variety, of which the fish incarnation, as was exhibited within this universe, is also one. Because there are innumerable universes, somewhere or other the fish incarnation must be manifesting His pastimes without cessation. In this verse, the particular word dhatte ("eternally accepted," and not the word dhitva, "accepted for the occasion") is used. The idea is that the Lord does not create the fish incarnation; He eternally has such a form, and the appearance and disappearance of such an incarnation serves particular purposes. In the Bhagavad-gita (7.24-25) the Lord says, "The impersonalists think that I have no form, that I am formless, but that at present I have accepted a form to serve a purpose, and now I am manifested. But such speculators are factually without sharp intelligence. Though they may be good scholars in the Vedic literatures, they are practically ignorant of My inconceivable energies and My eternal forms of personality. The reason is that I reserve the power of not being exposed to the nondevotees by My mystic curtain. The less intelligent fools are therefore unaware of My eternal form, which is never to be vanquished and is unborn." In the Padma Purana it is said that those who are envious and always angry at the Lord are unfit to know the actual and eternal form of the Lord. In the Bhagavatam also it is said that the Lord appeared like a thunderbolt to those who were wrestlers. Sisupala, at the time of being killed by the Lord, could not see Him as Krsna, being dazzled by the glare of the brahma-jyotir. Therefore, the temporary manifestation of the Lord as a thunderbolt to the wrestlers appointed by Kamsa, or the glaring appearance of the Lord before Sisupala, was relinquished by the Lord, but the Lord as a magician is eternally existent and is never vanquished in any circumstance. Such forms are temporarily shown to the asuras only, and when such exhibitions are withdrawn, the asuras think that the Lord is no more existent, just as the foolish audience thinks the magician to be burnt to ashes or cut to pieces. The conclusion is that the Lord has no material body, and therefore He is never to be killed or changed by His transcendental body.
(Srimad Bhagavatam--1:15:35--translation and purport).