Many people were harmed, slighted, or abused. Some throughout their life, some in school, and some after they were married. Instead of the frum velt standing up in the defense of these truly heartbroken individuals, society stands up for the people who harm and abuse the innocent.
This makes people V-E-R-Y angry.
Angry people NEVER forget what was done to them. They often sit and wait for their opportunity and are then very capable of causing untold tzaros for those who put them through their troubles.