The original purpose of the H1B system was exactly for those rare individuals that have some X skill(s) that can't be met by the domestic job market. The implication being that practically zero entry to intermediate level jobs would have H1Bs filling them, even in SV.

Though the expected norm nowadays is for it to be a cheaper second-rate labour supply restricted by years long waiting lists and lotteries, and not a smooth pipeline of geniuses and super-geniuses interested in emigrating to the US,