No, because any law based on civil forfeiture will be expanded and abused in the future just like current forfeiture and imminent domain laws are. Politicians and others from both sides will become mighty creative in finding funds for their pet projects.
Also, the Mexicans have ladders, underground tunnels, planes, trains, automobiles, 18 wheelers, and submarines. And finally, the clown cannon! Immigrants would fit either a Dallas Cowboy or Texan helmet and would be shot over the wall using a circus clown cannon, a giant sling shot, or maybe a catapult. The person would parachute into the bed of a waiting pickup truck. So, I don’t think a wall would be very effective.