Not proberts, but observing left wing media in the States over the last 8-10 years I've seen a carpet bombing of the same concept: eliding the difference between immigration and illegal immigration. If you want to talk to your conservative friends and family I'd start by checking whether or not it's illegal immigration they're against. Even the Democrats seem to be noticing that people don't like open border policies and are scrambling to adjust campaign promises in light of this.