No, it was cheaper because the economic inequalities between the US and Mexico make Mexican labor cheaper. Had nothing to do with supply and demand within the market. When you extend supply and demand outside the market, then I'd agree. The point of contention here is that it never should have been so extended because any moron looking at the facts can see the outcome - the destruction of the US economy as wages elsewhere rob jobs from America which cannot be replaced longterm because of competition driving jobs out of the market. This is bad for America; but, good for profiteers and globalists. The treason lobby chears, as it were..
That's the point; the global market horse has left the barn. Happened quite a while ago. And sorry for mixing metaphors at such an early hour, but we won't be putting that genie back in the bottle.