TFP has been the ruin of many a single man. They lure them in with direction to their vocation, and treat them like slaves in their prime, offering nothing in the way of a religious vocation whatsoever. They target well-to-do families, which they find useful to them to support their mainly strawman endeavors. Those that don't have money, are treated as meaningless to them.
In short, it's a cult. Avoid it.