Incorrect. He doesn't think that. He said it, like he says anything, to get votes.
Let's not pretend he'd lift a finger to help immigrant workers if elected. Everyone here's smart enough to know that, at least, right?
Look at what he did during his first term. Everything he did was to help himself, or help people who had something significant to offer him in return. Even if he thought immigrants would work for less, he's not the one employing them.
More likely he'd flop on this issue and frame it as protecting American jobs, to further entrench the votes of mid-to-right voters.