The merit-based proposal that I've seen last time around had very high bars; much higher than Canada, say. I would dare say that most H1Bs would be worse off under it, in that they wouldn't be able to secure the visa at all.
No, the best performers couldn't get a visa or had to leave the country, because of the cheap Asian imports, who overrun the system. With the proposed min. salary this would have helped a bit, but the numbers are still too high so that many high performers have to work remote. Which hurts the US economy because their workforce will not learn anything from the high performers.
Now with the retracted spouse rule you again benefits Asian visas because their spouses usually don't work. In contrary to Europeans.
I think, you are far from truth. To work on EAD, one needs i-140, which is enroute to green card. So non Indian and chinese, get their green card in 2 years. After green card, every thing becomes immaterial. So ONLY Indians and Chinese get messed up.
If they're not, what's the problem? The best performers still got their visas, and USA got the top talent.