If that creator is someone you don't want to associate with then why not just find a different project to use?
I don't want to associate with Richard Stallman (even before his stupid comments regarding pedophilia), yet I use Emacs every single day of my life. If you tell me that Emacs itself only came to existence due to any of Stallman's ridiculous statements or if you tell me that my usage of Emacs enables Stallman in any way to be the asswipe that he is, then I would seriously consider dropping it.
More importantly, I agree with parent that expressing views is something else than actively exploiting someone or using violence. Words != violence. Tolerance is being able to co-exist, work with and even be friends with people we disagree with. And, yes, that include people we think are intolerant (or that will be the excuse not to do the hard thing and engage in debate).
Open debate is a good thing, and it was hard won. Let's not throw it away so quickly.
Spinster.xyz is build on Soapbox and _run by Alex Gleason. It's hosting a community, which was banned from reddit for actively harassing and willfully hurting trans people. That's actions not words. Maybe people underestimate how organized and funded these hate groups are, how coordinated and planned the gaslighting of the public is. It's also not just "feminism" but more and more intersection with ultra right and "christian" conservative thinktanks.
Just because you are not directly affected doesn't mean it's all just opinions and words, and nobody gets hurt.
Are you saying they're beating people up? Or stalking them? Because, if not, it absolutely is "just" words! And if they do, that's illegal. I'm not in the US, but it seems to me like your laws, for the most part, strike good balance in these types of scenarios. Correct me if I'm wrong, but I'm guessing you would disagree?
I'm not saying it's nice, or good, or that they're moral. I'm saying that the "fix" many people (maybe not you) are advocating usually leads to much darker things than people having their feelings hurt by words[1]. We know this because many societies have gone down that path before us.
1: OK, that sounds flippant, I know. But I think many people underestimate the horribly things people have done, and still do, to each other..