The President said clearly that we need immigrants based on a merit system. He said this in 2015, 2016, 2017, 2018, 2019.
This invective is just more leftist spittle expressing hope to divide the Trump camp.
Ted Kennedy might have "fixed" that. :(
Based on this thread I would say it is working perfectly.
Meanwhile, perhaps the easiest way to reduce the number of undesired illegal entrants - while tending to assure only the entrance of industrious workers it is said we need - is to dramatically reduce or even eliminate our welfare system for illegal entrants. (In any event, the only way such a system makes sense is for Mexico to send us a check each month for the cost.)
Of course, the anti-American Left/Dems will by definition screech and howl at the moon at such a move. (Note here that not all anti-American politicians are leftists.)