I do not object to English artists doing covers. Where did I say that? Nowhere.
Though if they're shit I do. Because they are.

Composed tunes incorporated today into dance music will not become 'traditional' because it is no longer possible to forget who wrote them.
This is surely bleedin' obvious.

Your final paragraph is complete nonsense. The digital revolution means that attribution is simpler than ever. Obvious to non-tossers.