PC certainly has something to do with this, but so does hypocrisy as I suspect most of congress is not more than 3 generations from being children of immigrants themselves.
One final question, would you be so eager to stop immigration, if the immigrants were from england or ireland, instead of from mexico ? In the secrecy of your own thoughts, I think you know the answer and should at least admit it to yourself.
For myself - I would be for stopping ALL immigration for a time - but my main concern is illegal immigration and I will not speak for others - but I don't care of you are pea-green with purple spots - don't come here illegally and if you do - we should send you home immediately.
I feel that way right now, I felt that way 40 years ago and I feel that way when in the wee hours of the morning when it is just God and me talking.
Does that answer your race-baiting question?