Sex work (OF or otherwise) is unsavory, that's what. You can't stop it but there's zero reason we should be going out of our way to grant visas to sex workers.

> there's zero reason

The comment you are replying to articulated, I think rather clearly, one reason why maybe we should.

I think what you actually mean is that the reasons not to ("sex work is unsavory") outweigh the reasons to ("sex work is going to happen anyway and if some of the people doing it move to the US then they will spend their money and pay their taxes in the US and contribute to the economy there").

Maybe you're right, maybe you're not, but I don't think you should say "there's zero reason" when in fact there obviously are reasons and you just think other countervailing reasons matter more.