The evidence is right under your nose. If you can’t see it, then there’s no point arguing with you.
Take a look at this threat and this post and name how Cruz and Trump differ on immigration:
http://www.freerepublic.com/focus/news/3326408/posts?page=22#22
This evidence?
Cruz supports the expansion of H1B, without any additional restraints on it's misapplication.
Cruz supports the legalization of those here now illegally.
Cruz has never even mentioned a wall, much less advocated for one.
Cruz has not endorsed ending Birthright Citizenship for the children of illegals.
Cruz voted for TPA, ensuring TPP will pass.
Opposite positions of Trump.