What's sad is that educated people look down on people speaking "grammatically incorrect" even if their way of speaking is consistent within their group and conveying meaning perfectly. I just call that snobbery.
My experience of working with Germans in tech is that the accent is actually an asset. It's totally playing into a certain stereotype of all Germans being great engineers. "I mean...he is German...he must be smart!"
My gf's mother told me that joke back in the day, with a very heavy South American accent, but it still worked, maybe a little better because she said "Kissin-gher".
I saw Henry himself just a few years ago, right before Covid, in a NYC restaurant. He's extremely old, but he seemed very together.
You might call him a "statesman", but he wasn't precisely a politician. Also, the post WWII/Cold War era opened the door, so to speak, to a large number of displaced Europeans, scholars, to give advice about East and Middle European issues, advanced science, etc. Zbigniew Brzezinski, Werner von Braun also come to mind.
my German accent only got less notable after speaking a ton of English living in English speaking countries for several years. For some reason losing the accent was way harder than getting rid of an accent in French.
Especially words like 'strength'. If German is your first language there is something about 'r' and 'th' sounds that's so hard to get right.