Cruz understands how the world works. The US is a huge country that can’t turn around on a dime. You have to start heading in the right direction, and then gradually things start to happen. Turning in the leftward direction, they call it the ‘slippery slope’.
This is how political support and movements build. You do the most obvious and beneficial thing first. Everybody likes it. So then you say, OK, what shall we do next?
Throw every damn illegal out. Eisenhower rounded up a million plus in the 50’s.
Well then this needs to be afforded to candidates like Trump as well by the Cruz supporters that would rake him if he had said this.