The abuse coverup IMO is the BIGGEST Chilul Hashem and the greatest threat to charedi Judaism and its fairly easy to fix.
In general society abusers are considered the lowest of the low, nobody like abusers, just look at Penn State or the Catholic Church. Harboring them not hurts more people, It hurts Rabbinic leadership and does cause people not to listen and not respect Rabbenim. People dont respect abusers and they dont respect people who habor abusers.
Every averiah caused by someone who went OTD because of abuse and rabbinic coverup of the abuser is a stain on the community