The reason is that SV works on connections, and people are afraid that they won't get their next round or that sweet job if they rock the boat. Also, we're mostly all dudes, so therefore more vulnerable to false allegations on this topic. Also some overlap with culture-wars and pushback against the perceived excesses of the MeToo movement.

Hypothetically, if a little girl were molested by her older brothers, how should she proceed in order to satisfy your sensibilities?