So, you mean that don't "gladly recieve" that kind of user but you don't ban them from using lemmy from their own instance, and even of you wantted to, you can't.
That sound really healthy in a broad sense , I mean for everyone even of it sound counterintuitive. For a moment I thought you can ban people from using Lemmy in general (not only from using your instance).
I think that FOSS in general has a good chance in the long run, and non-algoritmic feeds probably will help so low down the polarization or at least won't make ot wors (I hope).
The base of capitalism is freedom of choice and assosiation, and you are literally posting on a platform that emerged out of people acting in freedom, that is capitalism too