From what I'm seeing and hearing in the tech space, I think the opposite is true. I think the current admin's war on non-white people is making companies really wary of hiring H1B holders (even European ones) and even green card holders.

A lot of companies are just halting hiring altogether for a bit, and the ones who are hiring are looking for local, laid-off tech workers at lower salaries, who have to take it because there's such a glut of them to compete with. Somewhat counterintuitively, this doesn't mean an easier time for Americans to get hired, it means fewer overall Americans getting hired period (which the recent jobs reports prove to be the case).

Companies tend to hire visa'd workers when they are doing rapid business expansion, because that's when saving the 20-30% per-head adds up (e.g. if you're saving 20% per-head when hiring 100, you're saving yourself 20 salaries-worth, but if you're hiring 5, you're better off getting the most experienced ones who give you the best bang-for-your-buck). And no one is doing rapid business expansions in this economy.