Hey I've always wanted to try Second Life. Only marginally related but you mentioned it so I thought I'd comment on that
At first when you said mythical types, I thought you were talking about mythical fursonas, like phoenixes or dragons or something [which is super common in furry fandom] but those examples are definitely rarer types of furry. I see them in corruption of champions though, so they can't be TOO disliked, I'd think
Anyway, I think you should leave that group and try and find another, because it's unhealthy to stay in a group where everybody regards you as below them for whatever reason [this time because of the type of furry you are] even if they are civil a good amount of the time, even nice, because all their actions are coloured by this bias where they think they're better than you or more of a furry than you are.
After all, there are always many other groups on the internet. :3