Um no. FLDS maintains it’s socially isolated community so it can abuse women and children. And the Amish aren’t isolated in out of the way compounds either. They’re spread throughout the country side, living their lives in full view of others.
I didn’t say physically isolated. Muslims in the inner city live in socially isolated communities as well. Invite that nice Amish family next door to your kid’s Bar mitzvah and see if they come. Or have their kids over for a “play date” and see if you get a return phone call (assuming Amish have phones which they don’t).