What kind of argumentation is this? Just because someone decides to show stuff, everybody else is also required to show themselves? e.g. If I go to a theater where the actors are clearly identified, I have to be okay to get a facial scan as well?

Some people tend to demonize porn, and it might be unethical in their eyes, but fact is: it is not illegal (in most countries). I don't argue that there are issues in the porn industry, but this is an issue with the platforms, that they don't allow the upload of non-consentual material, or and have processes to take it down. This is a 'THEIR' problem (the platform not the victims).

There some of these issues also exist in the standard movie and music industry as well. Hell, it even goes up to company executives and politics. But this is up to law enforcement do their job and to remove the illegal stuff and prosecute the involved persons, not by branding everyone as a suspect.