“Sure, it works like this:”
How it really works:
Irs: Give me 39%
New Yorker deducts his 10% in SALT (or whatever level it may be) and pays IRS $40,000.
While somebody in another state pays $9,000. Without much for SALT deductions.
Worse, we have people on this forum and elsewhere who pay absolutely NO income taxes clamoring for the guy in NY to pay more.
I guess it’s safe to assume from your profile that you live in California, so that explains a lot. You don’t seem bothered enough by California’s tax rates to move out of that cesspit, so why should we literally give your horrible communist local officials a financial incentive to keep raising your taxes further at the expense of the federal treasury? It makes literally no sense.