Wacky parents will do wacky things with or without homeschooling.
My experience with homeschooled adults has been that they are pretty normal and are quite grounded. They may lack a few negative experiences but hey, life will get around to slapping them with enough of those anyway.
You are so right - and these were WACKY parents (the second set that I knew personally). They were the extreme example of “helicoptor” parents and the kids could do NOTHING wrong. They were always the victims. Mom even tried to get COLLEGE professors to slack off the oldest daughter - needless to say, the daughter did not finish even one year of college.