Sister Wives on TLC

Has anybody else seen the show "Sister Wives" on TLC!?
It's so interesting to watch their show and peek into their lives. I have always wondered how polygamists lived. How their family dynamics worked and if they were happy.I can't imagine sharing my husband with 3 other women.
But I just can't see why everyone is so hard on them. I may not agree with how they live or in any way want that for me, but why does it bother everybody so much? Why are they being investigated? And why are they at risk for losing their kids. They are about as wholesome as a family can get. They are so caring towards their kids. And they seem to be so happy living in their "lifestyle". So what's the big deal?!

It seems people are super open minded tO a lot of crazier, way more destructive, weird or just plain wrong ways that lots of other people are living their lives.

I don't see how they are hurting anyone, and I think they should have a right to live how they want. As peculiar as their "lifestyle" is shouldnt we just let them be...

I would love to hear what anyone out there thinks!!