We could stop border crossings today by fining the shit out of American companies that employ illegals. No jobs, no illegal immigration. But conservatives won't do that because 1) it would drive up wages if the shit jobs had to suddenly rely on Americans to fill those positions and 2) it would mean punishing wealthy white businessmen, and conservatives do everything in their power to never punish wealthy white businessmen. But they are GLEEFUL to see cages full of brown people and their kids. I suppose if the Canadians were to become poor enough to have to sneak over here for jobs (which will never happen because they have things like universal healthcare), conservatives might hate them almost as much as Mexicans, but it wouldn't last long. History has shown that every white European wave of immigrants is eventually welcomed into club white in this country.