It only takes one jerk to make me want to swear-off group rides.

[KatzPajamas]

Having been in numerous situations such as this (outside the cycling arena), I have found that the best way to deal with these people is to pretend they aren't even there. Those kind of comments don't even deserve an response nor even an acknowledgment! You are there to ride! I assume you are also in search of friendship, so gravitate towards those who are there to ride, not form a pecking order. If such people don't exist in your group, maybe it's time to find some who DO want to ride and form your own group!