I don't mind motorcycle clubs per se.
SOME clubs, however, are heavily into drugs and other crimes. It seems to be their sole purpose of existence. Their members tend to be prone to violence too. I have been the victim of some of this for NO REASON. Just being in the wrong place at the wrong time.
So while all organisations have some bad apples, these gangs tend to have a much higher percentage of bad types. Yes, churches have paedophile priests and that is disgusting. However the vast majority devote their lives to helping others. That is the philosophy of their vocation. Bikies don't have the same altruistic philosophy in general and as I haver pointed out, some gangs are out and out into criminal behaviour. Therein lies a HUGE difference.