Ending the hordes from Central America infecting (literally and figurately) most communities in the US is an issue that a majority of US citizens agree on. It's the Chamber of Commerce that's the problem....too many DC pols get their marching orders and payoffs from them.
I'd wager that if the HOR passed a bill funding transportation to send invaders home and a 10-mile militarized by US troops DMZ...the northernmost 10 miles of Mexico....it would be overwhelmingly popular.