Just because the INS is not expedient in processing immigration applications doesn't give the applicant the right to illegally cross over the border into the U.S. because they are tired of waiting. I don't care if it takes 1 year, 5 years, or 20 years to process the applications, people who want to come to the U.S. still need to obey our immigration laws and wait for their turn.
How many self-appointed buttinskis are patrolling the wide-open Canadian border which is much longer and over which terrorists have actually entered our country?
I think it makes more sense to take care of the "big leak" and not be as concerned about the "small leak". Many, many times more illegal aliens and potential terrorists are coming across our southern border than are coming over our northern border.
Now you say that they are "trying to prevent" those of any nationality from entering the US over its Mexican border. How many Norwegians are they tracking? How many Chinese? How many Bohemians? Any Finns? Oh, that's right! Its just Mexicans but that is just a coincidence, right? How could I have thought otherwise?
These groups of American patrols are not targeting anybody based on their nationality or ethnicity. If they see somebody crossing over the U.S. border in the desolate areas in which they patrol, they are going to inquire as to what that person is doing. People tend not to walk through the middle of a desert and cross international borders simply as a recreational activity.
The Canadian border is also weakly defended, but the Canadians, as boring as they are, do not show overt official hostility (unless conected to the Loony Left) to the US and actually make a game try at enforcing the law with very limited resources.