I am very pro H1B and I agree with most of these.
1) The key point: Silicon Valley companies are paying 6 figures out of college for top talent. So for someone to be worth importing (and I believe many are), obviously $100k should be a minimum.
2) Paying a 10% tax? Maybe for 1 year, since it costs at least $10k to hire someone (probably also from out of the country, but at least they are putting their money where their mouth is when claiming there are no equivalent candidates (which I believe is often true!).
3) Bidding? The problem is if you limit the VISAs it just turns it into an oligopoly where Google, etc steals all of the top-top talent and no one even gets the rest. Bidding only works if you open it up to the full free market, someone needs to get the 2nd round draft pick who eventually kicks everyone's ass.
4 - or 3.2?!?) Cardiac surgeons. Yes! That's the exact problem. There is NO shortage of cardiac surgeons. There are 5x more medical residents that could be cardiac surgeons than get the chance. The problem is we make them all feel like professional and financial failures because they don't become cardiac surgeons...