Why are state income taxes going down?

Competition between states for high earners has intensified (link):

...two structural changes have enhanced state tax competition. First, the 2017 Tax Cuts and Jobs Act capped the federal deduction for state and local taxes paid at $10,000, thus increasing the “felt cost” of state taxation, particularly for higher earners. A high-paid Silicon Valley engineer who could previously deduct $70,000 in California income taxes on his federal tax return can now only deduct $10,000. In short, the burden of his state-government tax policy went up, incentivizing him to find a better-managed state.

Second, the pandemic untethered a multitude of high-paid workers from a geographic location, creating the opportunity for taxpayers to move, and giving states an incentive to compete for their relocations. A 2022 McKinsey report found that 35 percent of workers were eligible for full-time remote work, including 46 percent of workers earning over $150,000. The Silicon Valley engineer who lost federal deductibility for his California income taxes in 2018 became eligible for remote work in 2021. His move to Austin, Texas, eliminated his entire state income-tax liability. 

HT:  Instapundit.com