To quote a Star Trek character I once read in a book:
“Klingons are ruthless, vindictive and savage bastards but on the other hand, they pay their bills on time and in full. By Ferengi standards, we can accept such idiosyncrasies so long as there’s profit to be made.”
Rule of acquisition 21: “Never place friendship before profit”
Never place profit before survival. You have to survive, to profit. Don't be one of Lenin's capitalists and go around selling rope to Bolsheviks.
The day Japan raided Pearl Harbor, a tanker owned by Texaco (whose board chairman at the time was a Norwegian former tanker captain) was offloading at a pier in Malmo, Sweden, to a Nazi German oiler lying on the other side of the pier.
With the Chinese ordering us out of the Western Pacific, it's time to stop talking about who's selling to whom, and who owes what to whom.