That's the thing, they're already in the US. They've been here for years if not decades. They just don't have a green card or voting rights. You either also implement a per country cap on H-1B or remove it from green card altogether. This business of having it on the green cards (which gives immigrants their rights and bargaining power) but not on H-1B disproportionately tilts power in favor the companies.

Tech companies get to have their cake and eat it too under the current system. In other words, business as usual...

That's only once you file your I-485 and are waiting for a decision on that. It takes Indians and Chinese decades between an approved I-140 and being able to file a I-485. There's no EAD in that interval. You are beholden to your job and employer.