What do you think about a person living on the USA soil, enjoying the luxury of a freedom and yet promoting?

i agree that he does have the right to express his views, but at the same time I believe that it is extremely hypocritical if he promoters such values while reaping the benefits in the U.S. He does have the right to express himself, but we can also have an impact as americans on him by voicing our own opinions to him. Engaging in respectable arguments, and if he won't listen then you have to respect that space. Or one can try and get through to him through sublimal messages. Other than that one would have to catch the person doing something illegal or unconstitutional, there is not much else that you can do.