I assert that generally, the base is against any form of immigration and is thus against H1Bs. It's not just Bannon. The only acolytes in favor of H1B are Musk and Ramiswamy (already voted off the island). Eventually when the grassroots - whom Trump does listen to - tire of Musk, he gone.
Money always wins. And there is a lot of money involved here.
Looking back, I think Elmo and Vivek should have just kept their mouths shut on the H-1B visas issue. It is not that big a concern among the larger anti-immigration crowd, which is much more focused on border security, asylum seekers and the imagined "immigrant crime wave".