In my experience, the biggest issue many Republicans have with legal immigrants is that they tend to fervently support anything and everything that could benefit illegal immigrants. The friend of my enemy, etc.
That sounds exactly the opposite of everything I've heard. Legal immigrants are proud of their achievement and tend to negatively view those who circumvent the system that they participated in.
In the "Five actions to restore security and the constitutional rule of law" section is this:
> FIFTH, suspend immigration from terror-prone regions
where vetting cannot safely occur. All vetting of people
coming into our country will be considered “extreme vetting.”