I have no frigging idea why anybody would defend patreon over this, unless he's working for them.
Business or not, they are treating their creators like shit, nothing justifies that.
And I'm not saying every porn game is high art, but it's a creative venture and Patreon has no ethical or moral right to enforce censorship.
They just do it because they can and they don't give a shit that people won't get the games they paid for and that some devs loose their way of making a living.
Don't try to sweet talk this bullshit.