Yes, I can see you're struggling with the larger issues of language here, and they're getting the better of you.
Now, I attended summer school for intensive German classes at Andover when in high school, and followed that up with four years of college German. I've also had four years of French in college, and two years each of Russian and Spanish. My German and Russian accents are, according to native speakers of those languages, excellent. French and Spanish, not as good. The point being I'm conversant with issues of accent and pronounciation.
I have never met a foreigner who could pronounce my last name properly. They trill the r or fail to produce a properly American vowel. Should I accuse them of bastardizing my name?
Steven, whom I mentioned earlier, may pronounce his name perfectly distinctly to all the Venezuelans he meets there, only to find them pronouncing it back to him as "Esteeben." It's the neural wiring. Habits like this go very deep, and there seem to be a lot of people who just can't ever break them. As I mentioned before, Einstein couldn't pronounce English to save his life. He had the same problem adapting to a language foreign to him that most people have. There are no reports of him I'm aware of suddenly losing his thick Swiss German accent when pronouncing American or British names. Nor have I ever heard any reports of any American or British people who knew him complaining: "That damned Einstein! He keeps pronouncing my name with a GERMAN accent. That's NOT the way I want it pronounced!"
The fact that people don't break into a foreign accent when pronouncing foreign names is pretty much understood to be perfectly acceptable. People do their best without inconveniencing themselves overly, and it's understood there is no disrespect intended.
The irony is, that were you able to meet Einstein and tell him of your crusade to get his name pronounced properly, he would reply "Senk you, Tsappah Tsee!"