The book
Mayflower Madame did a reasonably decent profile of some of the inner workings of a call girl service. One thing that allows call girl services to operate is that they do not charge for sex. They charge by the hour for the woman's company.
While most clients expect sex, not all do. A few of their clients were gay men who hired call girls to accompany them to social events, like large family weddings. In some cases, they hired the same girl every time for the appearance of a steady girlfriend. In at least one case, the family liked the girl so much that the gay man was getting pressured to marry her. They had to stage a tearful breakup.
The point of that story is that, if I were doing a sex based business, I would go reread that book and see what takeaways I could come up with for how to do this. It was such a classy business, some of her clients stopped seeing call girls at other services in other cities when they traveled because it raised their expectations for standards.
While I am sympathetic to the very real problems that the most fringe groups have (gays, trans, people of color, etc) I believe strongly that asking standards to be lowered to accommodate their personal challenges is the wrong approach. Instead of saying that we should be allowed to make money in spite of not being cultured people who get the difference between porn and erotica, it would make more sense to seek to establish some means to effectively educate people who want a business in this space, but aren't sophisticated enough to readily navigate it.
There are reasons sex is a touchy subject with restrictions on it. Free love climates only thrive in situations where you can largely eliminate serious consequences. The Hippie Era was born of the creation of both reliable birth control and antibiotics. It died due to AIDS.
One of the benefits of online sexual things is that no one will get either pregnant or diseased from it. That doesn't automatically eliminate all problems associated with sex.
I think we do need to get over our aversion to paying for sexual services. But, I think we need to be careful in how we approach new standards and solutions. A lot of people don't really think things through and then you learn that X practice leads to very bad things by watching those bad things unfold.
As an alternative or adjunct payment option:
This may not help some of these businesses, because Pay Pal's policies may not be anymore sex-friendly than Patreon's, but you can do a Pay Pal tip jar or Pay Pal payment system. Here are things I have written about making a tip jar:
http://micheleincalifornia.blogspot.com/search?q=Tip+jar
That likely won't be a ton of money. There is likely room for improvement.