ITT people pretend people don't get turned off from associating with a party when crazies in that party are very prominent. Excel isn't prominent to most people, but to someone that hangs out at Era a lot, she is, along with all the other crazies.
PETA is shunned because of its crazies, not its normal people. People don't like being associated with crazies.
Alternatively ITT: People pretend that because a single person can't effect nationwide change, they have no effect whatsoever. See also: "My vote doesn't matter."
And a moronic vote is worth just as much as a genius vote. If you want to win, stop turning the morons against you if you need them to win.