Why is the hate against OF not extended to mainstream porn?

Full disclaimer: I am neither super pro- nor anti-porn. Frankly, I don't really care what other people do with their life. That said, I am not a huge fan of the porn industry either.

Okay, to the point.

I have met a ton of people speaking aggressively against the existence of the OF platform, saying how it should be banned, and how it's the most unethical way to make money that has ever existed. This has been a point of conversation since the beginning of OF. However, I have not really heard other arguments than "pornography is bad" and "the OF girls exploit lonely men", etc. These are the same arguments that can be applied to the more commercial porn industry itself.

That said, the same individuals that absolutely hate OF don't oftentimes have the same anger towards porn sites like phub, xhamster and so on. Sure, some anti-porn nonprofits and religious people do, but a lot of the OF "protesters" seem to be completely fine with this type of porn, but are only specifically against OF. I am genuinely curious why this is, and if someone more knowledgeable and educated on the matter could tell me, I'd appreciate it!