You can talk in hand-wavey sound bites about civil liberties that's not the world we've chosen to create, and it's hard to understand how you can earnestly compare racism and homosexuality. Are violent racists oppressed when they're not permitted to deny the rights of minorities, in the same way minorities are oppressed when they're not permitted to exercise their rights? Perhaps when you're philosophising in comments on the internet about civil liberties they're the same but in the real world they are not.
You cannot effectively allow people to individually "filter out" toxic behaviour within a community because toxic behaviour permeates all aspects of participation in a community. The views we hold are fundamental to all aspects of our lives: our lives are built upon our views. A violent anti-semite's beliefs are present in their views on politics, religion, video games, food, housing, travel, science, technology... you cannot effectively "filter out" the fundamentals of someone's view points without neutering their speech -- which is no different from de-platforming them.
A community is a group of people and a group of people is a collection of beliefs, a community is not a bunch of people who use the same website but are intentionally siloed because their beliefs are incompatible. People who favour the PlayStation 4 over the Xbox One can be part of a community with people who favour the Xbox One over the Playstation 4, but can people who wish death upon all jews be a part of a community with jewish people?
You cannot effectively allow people to individually "filter out" toxic behaviour within a community because toxic behaviour permeates all aspects of participation in a community. The views we hold are fundamental to all aspects of our lives: our lives are built upon our views. A violent anti-semite's beliefs are present in their views on politics, religion, video games, food, housing, travel, science, technology... you cannot effectively "filter out" the fundamentals of someone's view points without neutering their speech -- which is no different from de-platforming them.
A community is a group of people and a group of people is a collection of beliefs, a community is not a bunch of people who use the same website but are intentionally siloed because their beliefs are incompatible. People who favour the PlayStation 4 over the Xbox One can be part of a community with people who favour the Xbox One over the Playstation 4, but can people who wish death upon all jews be a part of a community with jewish people?