The $100K is clearly the "last $100k", that part should have been obvious, but you choose to be obtuse instead.
So, if you are taxed one dollar out of $1,000,000, you would see that as being taxed for 100% of the last dollar you earned? You are worse than stupid. You are intractably and willfully ignorant.
. You seem to think that a 38% rate is acceptable for ANY level of income.
There is no one in the United States who pays 38% of their income in income tax. Not only do you not understand how marginal tax rates work, but you are intent on maintaining this state of not understanding marginal income tax rates.