A language belongs to its native speakers, and when you speak it, you are a guest in their homes.
If you are not a good guest, you have no right to complain about receiving poor hospitality.

This seems like an interesting concept.

Interesting in a good way or a bad way...?

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A language belongs to its native speakers, and when you speak it, you are a guest in their homes.
If you are not a good guest, you have no right to complain about receiving poor hospitality.

This could explain some experiences I made in England - maybe because I tried to speak English and so turned out to be a bad guest.