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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?
If a website permits members to be openly anti-semitic or racist or sexist then they will be anti-semitic, racist and sexist everywhere, whether that's a quarantined sub-community about anti-semitism, or a community about video games, make-up or curating art for galleries. No amount of education is going to encourage jewish people to spend their time talking to openly anti-semitic people about video games. If you permit toxic behaviour then you exclude anybody who feels threatened by that behaviour.