There's a rise in homeschooling in general. Not in abuse within homeschooling families. Unfortunately, dysfunctional families are using homeschooling as a means to hide abuse. So it is attracting some crazy people.
https://digitalcommons.law.byu.edu/...le.com/&httpsredir=1&article=1335&context=elj
https://www.thedailybeast.com/the-sinister-side-of-homeschooling
Also, homeschooling is quite popular among more secretive people and religious people who likely believe more strongly in corporal punishment, which enables a slide into abuse more likely than among people who don't believe in it.
But clearly the vast majority of homeschoolers are normal families. In fact, I think it's safe to say the majority are families who are the opposite of neglectful or abusive as they tend to be super concerned with their kid's educations and very involved in their lives and growth and development.
I think stats bear that out- homeschool kids apparently do well academically in college and are successful in the world.
So I think it's not that people who homeschool are weird or dangerous. But I think weird or dangerous people might be attracted to it.