I have heard this since 911. It’s no more true now than it was then. First, I have Muslim colleagues I study with. They are not a threat to us, the pay very high tuition, and will go back to Saudi, Iraq, Iran, etc. with a good impressions of Americans. Second, as for the Muslims who just work jobs or are on the dole, and have at any point voiced even the slightest sympathy for fundamentalists, since none of those 6 things will ever happen, what should we do?
Unfortunately, some sort of "racial profiling" is in order. It's why blacks get pulled over more frequently and get searched more often. Many blacks are not criminals, but many criminals are black. The percentages favor scrutinizing them more closely. If the well-to-do Muslims you mention end up going back to their rich families in Saudi Arabia (a country filled with millionaires that finance terror) with a negative view of the USA, well maybe fewer of them will come here. Bummer.
Maybe if more innocent Muslims got this "unfair treatment", they would speak out more some against their violent co-religionists. It is unfortunate that innocent Muslims would be subjected to greater scrutiny in a world that took Islam seriously; but to simply let them all come and go as they please for fear of ruffling feathers simply will not work. IMO, a Muslim should dread flying because he should know he is going to be treated as a potential terrorist. Flying to and from the USA and Europe should be like flying to and from Israel.