A company willing to let got 60,000 workers does not have labor shortage. That is a simple fact to understand. Any one who disagrees is a bad faith actor.
Now the question is, why is Microsoft one of the biggest H1B visas filers in the US year after year?
Because there is no labor shortage, obviously. H1b and H4 visas have been used against the American people to lower wages and squeeze more work out of them.
This is not an attack to those on H1b and H4 visas. You are not at fault. You are not the people benefit from all of this.