An interesting debate happening between at least three Swedish Mastodon servers right now. An admin on mastodon.se wrote a blog saying they would tolerated Sweden Democrat supporters as long as they stick to the rules. One Swedish server, suedi.club, has defederated as a result and I think some non-Swedish ones have done so as well.
In many ways this 'new' debate parallels the ongoing debate over SD that we've seen since they were elected in 2010.