He walked that back, he was disconnected enough to not realize the abuse going on with h1bs. He said he wants hard restrictions on it and require higher pay to prevent using them as cheaper replacements.

What he is thinking is that H1Bs are a tool to brain drain foreign countries, which is a strategic move strong economies can use. I would prefer that we stop doing that and heavily reform our education system instead, but using it as a tool to acquire actual top 1% intelligence is much better than the way it is used now.