I think one should only be explicitly classified as a “person who likes to drink tea” if they explicitly identify as one. The fact that they drink tea every day can’t be taken into consideration as it’s irrelevant, right? :^)
What a furry is is so weirdly nebulous. Some bronies I knew came from the furry fandom. But I know a few guys who were bronies (now ex-bronies, or are a lot less involved in pony stuff) but don’t participate in the furry community at all.
Yes they are. Not sure why anyone wants to be in denial about it considering both fandoms like animals in a certain type of way and even share fetishes in artwork and other things like creating custom costumes representing animals. The same can be said about those who like Sonic characters in that way too.