In a similar flavor I never liked it when I worked at $BIGCO and people treated you differently if you were an employee v a contractor. It wasn't a privacy or trust-level thing - it was just social status stupidity.
No, I don’t think H-1B is abusive, it’s an opportunity for hardworking people to prove themselves just as, or more capable than the locals. I don’t think you’re truly concerned about my wellbeing, I think you’d just rather have my job.
I think that complaints of abuse are thinly veiled xenophobia. You pretend to be helping us, but you just want to protect your own overly inflated salaries from market forces.
What you think is "best for you" changes for a lot of people over time. Meanwhile, using my iphone analogy again, you are merely raising the cost of a phone for those who "just want a phone". ie, you are raising the expectations for employers who will expect more people to work for 40+ hours, while getting paid for 40.
If you are from a country with a long waiting time for a US green card, you should really look at a moving to another developed country, or marrying a local.
However, I'm not in favor of the common practice where employers make no attempt to hire a US citizen and instead hire an H1-B employee who is willing to work for peanuts.
That doesn't mean I'm a xenophobe.