You are correct to a point and it’s the Same for every fan base. You have them, TB has them, Leafs have them etc. and I’m sure none of like them wearing out teams colors and acting like aholes.
For me, regardless of the fan base, i try not to generalize, or consider the idiot fans as “representative” of the fan base. They are what they are…a small segment of the fandom that is obnoxious.
I think that approach isn’t typical. just like today’s world of the noisiest getting the attention, in today’s world, generalizing is the norm.
Example: the Rangers fan base has a lot of very passionate and knowledgeable fans. At games in Boston some Rags fans in the stands have been brutally arrogant and boisterous. Do they represent the fan base? For some, definitely. For me, Not by a long shot. Those obnoxious fans are just obnoxious fans.