I think Trump, if he is real about MAGA, heavily need H1B to make MAGA possible.

USA almost lost researches and engineers due to heavy attack on education. There is not only lack of educated workforce, but also lack of those who could teach that workforce.

American guys who are cool engineers I know close enough are retired or about to retire, and none of them prepared any successors.

MAGA is impossible without reviving USA industry. Reviving USA industry impossible without highly educated workforce. Only way Trump could get enough highly educated workforce or at least somebody who could teach youth is importing them.

The worst thing is that researcher and engeneer in modern USA are much less popular professions than even blogger or lawyer. So even if Trump bring educated immigrants with H1B there will be nobody to listen and learn from them. I don't see how to change that without massive state propaganda and interfering with businesse, but both propaganda and interfering with businesses is accounted as evil in USA.

In Russia it took at least decade just to began turning the tide in education from producing managers and financists to preparing engineers and scientists. And its with state propaganda and interference along with high demand for tech professionals. From the other side, retirement is not very wealthy thing here, so there were still old professionals in business who were able to transfer some knowledge to next generation.