This sounds good in theory, but moderation is an important part of keeping online communities, well, communities.
Each online community has a different Overton window, so it’s more a matter of finding a community that has an Overton window you can accept than anything else.
On this issue, lemmy.world is more American and rabidly pro-Israel and lemmy.ml is more international and rabidly pro-Palestine. Reddit might as well be an extremist platform calling for ethnic cleansing of all brown people.