if this passes - all the "carrots" will go into effect immediately, the security measures will never see effective implementation. 12 million will get amnesty, and the signal will be sent to millions more - "if you can get here, you can stay". the american southwest won't be recognizable in 20 years.
It won't take 20 years. We will look more like China, overcrowded with mobs. The marxists of both parties will win.