I'm all for killing corrupt unions that kill corporations with things like lifetime $10k per month salaries and pensions with full benefits for HS graduates to turn a screw in a factory 40 hours a week for a few years. And the ability to trade with other nations is essential in a global economy.
I have no problem with properly screened Mexicans and other immigrants who come here to work, obey our laws and culture, and obtain citizenship legally through proper channels. My own ancestors were Western European immigrants and Native Americans.