I believe Emma’s (and by default’s Snow and Charming’s reaction) is dependent upon how she deals with Rumpel tricking her into almost getting herself killed by a dragon for magic that he ran away with, thus leaving her in the lurch and leaving her son to die. I really don’t want that all glossed over. So I think Emma more than most of the rest of the town has reason to dislike anyone who associates with Rumpel.
I’d think most would figure Belle, poor girl’s been locked up for 28 years doesn’t know what kind of a man she loves at all and try to help her see the light. It sounds like it’d then be more likely that Belle would reject them trying to “help” and cling to Rumpel. (Even though I’d much prefer the opposite.)
If everyone figures out Rumpel created the curse, and if magic immediately starts wreaking havoc and they figure out he did that too (I mean Rumpel probably just gave power back to Emma, Snow and Charming’s worst enemy), then even more reason for Rumpel and Belle to be outcasts.
That’s truer to the story of Beauty and the Beast anyway, even though the Beast had done far less to anyone than Rumpel has.