Given that you have not provided rebuttals to most of the points I have made in several exchanges, I assume that this straw man argument and link to an ersatz "authority" is the totality of your "informed" opinion?
It does not matter if, 8 years after "recovery", the US corporations are now making record profits - what matters is that after the worst recession in the US since the great depression AND the slowest and most anemic recovery recorded for a rescission , that US corporations must sustain record profits, and record lower losses in economic downturns (which are inevitable).
And it does not matter what Warren Buffett thinks. He is not an economist. He (and his staff) are talented hedge stock investor/speculators whose entire job is to find the profitable nuggets in the gravel of mediocre and less profitable stocks
(international and domestic) - which has NOTHING to do with the competition (and consequences) of Chinese, European, or other Brick from corporate tax advantages.
You need to wean yourself from the trope of corporate-stockholder business as some kind of hobgoblin; otherwise, it will keep forcing you to make facile observations, that are unmoored to economic laws and tax theory.
In the meantime, here is some homework (containing both left and right skeptics of the Corporate Income Tax).
The Grumpy Economist:
https://johnhcochrane.blogspot.com/2017/01/corporate-tax.html
The Atlantic (Megan Mcardle):
https://www.washingtonpost.com/opin...4417592cf72_story.html?utm_term=.46ff294754f9
Business Insider:
6 Reasons To Get Rid Of The Corporate Income Tax - Business Insider
Daily Kos (Robert Reich):
https://www.dailykos.com/stories/2014/8/25/1324505/-Eliminate-corporate-tax-seriously
New York Times (Laurence J. Kotlikoff):
https://www.nytimes.com/2014/01/06/opinion/abolish-the-corporate-income-tax.html
Washington Post:
https://www.washingtonpost.com/opin...4417592cf72_story.html?utm_term=.46ff294754f9