And who else are "the right people"? Muslims are American citizens, too.
Sure they are. Some are good people.
About 20% of muslims world wide support the use of terror to spread their religion and political power. Many of the other 80% are peaceful and just want to live their lives. Most aren't even that "muslim" and have no desire to push their faith on anyone.
The trouble is the vast majority of Muslims will NOT speak out against the 20%. Not only won't they speak out but they certainly won't fight them. A significant number will help the radicals.
In this case Khans son was fighting for America, or least was serving in Americas military. We don't know if he was fighting for America or for some other reason. Assuming he was, it really isn't relevant. Radical muslims kill more Muslims than they kill non-muslims. That will hold true until they get their hands on WMD.
Once muslims gain a foothold in the country they start pushing for usurpation of the laws to implement sharia law. They are doing this in Dearborn MI all the way to London. There is not a single muslim country in this world that has not gone this route. Turkey used to be an exception but it has now failed to the radicals.
Muslims as a whole are the ones who find our way of government, our freedoms, and our very existence to be offensive and wish to kill every single one of us. How are we the bad ones for protesting this march to the bloodbath?