Again, the issue is their effective federal rate. When they shift jobs to low wage, third world shitholes, their profit increases. They are taxed, at the federal level, on profit. Hence, their effective tax rate should increase by screwing America. Yet it doesn't. Why is that?
Perhaps it's because countries like Vietnam and China don't have all of those tax credits that we do, but companies are willing to move operations there because they provide a cheap, near slave wage market, so it doesn't matter that they pay a bit more in tax to those countries, while they write those same taxes off here?
Nope. It's a bullshit argument that American corporate tax, effective rates are high. The reality is the corporations like paying peanuts for wages, and could give a rat's ass about America.
When companies shift production abroad, their tax rate falls. The math is simple. If a company earns $200 in the US, it will pay $70 in taxes. If it shifts half of it's production to a tax free jurisdiction, all else being equal, it will then pay $35 in taxes, cutting it's effective tax rate from 35% to 17.5%. Lowering the corporate tax rate reduces the incentive to shift production abroad. All else being equal, if the US corporate tax rate in the example was 17.5%, there would be no incentive to shift production offshore.
The data shows their effective "Federal" rate. You're excuse doesn't make any sense. The fact that many of them move operations to cheap labor third world shitholes increases their profits, while their effective Corporate Tax rates continue to decrease.