Its a shame what has happened to the American carriers and I have no doubt what you say is correct. However claims of superior safety are not enough to bring me back to the American carriers although in other areas I try to buy American goods and services.
Although I fly the foreign carriers almost exclusively I do try to fly on Boeing metal.
I love the 747 and I’m not particularly impressed with the A-380’s that I’ve flown with SIA, Emirates. I suspect my choices will become fewer as time goes on as the saga of the 787 seems to have no end in sight..
If ain't Boeing, I ain't going.