According to WHOM are these things harmful?
The Amish and the Hassidic Jews don't believe that their practices are harmful, and let's face it; those cultures have been around, and in spite of the woman who wrote the article linked to in the OP, have produced societies that have worked for quite some time. In the case of the Jews, a VERY long time.
So...YOU (very general "you") don't believe as they do, so YOUR beliefs must supersede theirs? YOURS are the beliefs that must be followed, YOUR ideas of what's good for kids must be obeyed over what their parent's beliefs are, BECAUSE YOU DON'T BELIEVE AS THEY DO?
The ironic thing here is that those who are forcing their beliefs upon these minority groups are the ones criticizing religions for forcing their belief on others. What the heck do you think you're doing?
Precisely the same thing. Because YOU want to do things YOUR way, and because you think your way is the 'one true way,' you are quite willing to force others into your method of doing things.
.....and don't come after me. Unfortunately for those who want to educate other people's kids to YOUR standards, my own belief system is 100% for education, the more the better. You can have no criticisms against us for that.
That does not, however, mean that either you or I have the right to tell the Amish, the Jehovah's Witnesses, the Hassidic Jews or anybody else how to raise their kids. Or rather, we don't have the right to force, by law, our views upon them.