I have a French colleague with the strangest attitude to his strong accent when speaking English. His accent is strong enough that it makes understanding him a bit tricky sometimes, and when I mentioned it, he said that this accent was part of his identity and he wouldn't be trying to improve it. He was weirdly taken aback when I said something in a 'good' French accent.
This attitude was really surprising to me.
For me, when speaking your non-native language, the aim should be to sound like a native (or with the accent of some subset of the native-speaking population).
I wonder how widespread this "X is my native tongue, so I'm going to speak English in a strong X accent, because otherwise I'd be submerging my identity" attitude is?