I am sympathetic to your concern that American drivers do not have access to Mexican roads. From my understanding, it is not safe for Americans to drive rigs in Mexico. The lack of access may be a way to oppose this agreement without triggering unilateral tariffs from Mexico.
I am not sure if this issue affects illegal immigration. I am in favor of inspections to ensure that immigrants are not smuggled.
In a broader sense, NAFTA was supported to decrease illegal immigration. I am not sure if NAFTA has had an impact on illegal immigration. On balance, I think that illegal immigration would be worse without NAFTA. Perhaps there is evidence to the contrary.
BWAAAAHAHAHAAAAHAHAAAAHAHAHAAAAAAA!
That sure worked out well, didn't it? Another example of wild success by our corrupt Federal Government. Feh.
Would you take an 80% pay cut so a foreigner won’t get your job?