Well, at least have the guts to admit that it requires some sort of racism to defeat terrorism, instead of beating around the bush, if that's what you actually believe.
Racism is if you are given some sort of disadvantage for no reason other than contempt against your race. For example: A man doesn't like blacks, so they are not allowed to do anything except slavery.
An airport check is not because the officers don't like arabs/south asians, it is for the protection of the passangers on the flight. Profiling for a real reason, i.e protection, is not racism, it is simply an effective means of stopping terrrorism. As a brown pakistani guy, if I get stopped for a security check, I don't mind at all, I will chat with the police and make friends with them while they check me.
Plus, it actually causes psychological harm. School segregation was ended in the US because they found out that it causes a lot of psychological harm to Blacks. Brown v. Board of Education. You can see how this can be similar.
The reason for any harm is the terrorists who force this kind of measures, not the security guys who are forced to do the profiling to effectively protect the passengers. Hence, you should direct your anger at the terrorists, not at the guys trying to protect themselves.