No, he does not think US took appropriate action. Even though he would not dress this way he does not approve this airline's and its staff's attitude.

And nor do I. It is not illegal for this guy to wear what he was wearing. He was showing his boxer shorts, not his skin. The FA who kicked him out is ridiculous. I probably do not agree with what he was wearing either (have not seen a picture), but being a FA does not make you the fashion police!

And this is another of the very many cases where FAs are abusing their powers. What about freedom? As long as there is no law against it, this guy can show his boxers.