Like mk said, the system we have at Hubski might not be perfect, but in my experience, it’s as good as it gets. Speaking as someone who’s butted heads with feminists on Hubski and elsewhere, and has been dubbed “that MRA guy” from day one, Hubski is the only community I know of where you can expect anything close to a fair debate.
The worst that can happen if, for example, you decide to go against the feminist majority is that some might resort to calling you a troll/misogynist and maybe a few people will be offended enough to mute you (which just means you won’t be allowed to comment in their threads).
Hubski gives users a good degree of control over what kind of content they want/don’t want to see, so it would be possible, in theory, for a certain group to create something akin to a “safe space”, by creating and maintaining a list of unwanted posters and then forbidding them from participating in their discussions.
That wouldn’t be very practical however, and to the best of my knowledge it's never happened, so I would say that Hubski is not designed to facilitate insular thinking, nor is the community prone to ostracisation and censorship (at least when compared to places like Reddit and Hacker News).
It goes without saying that most people don’t like having their views challenged, and identity politics notoriously breeds zealotry, so if you come here (or anywhere else, for that matter) expecting a feminist to be appreciative of your 500-word deconstruction of rape culture, you’re going to be sorely disappointed; but if you’re at the stage where you don’t want to feel like you’re just preaching to the choir and you also don’t want to have to walk on eggshells for fear of being lynched by the mob, Hubski is a good place to be.