Arguing against laws that prohibit sexual exploitation with high tech tools, because of the nature of technology, would be like arguing against laws that prohibit rape because of the nature of human sexuality.
The “it still is going to happen” argument doesn’t matter, because the point of the law isn’t to eliminate something 100%, it is to create consequences for those who continue to do what the law prohibits.
It’s not some slippery slope either, it is extremely easy not to make involuntary pornography of other people.