You've just described thousands of years of history.

Maybe it should be returned to mother earth, that way there would be no violence in the chain of ownership.

unironically. yes. we should throw it into the ocean.

it’s more fair than the current situation and there seem to be no other plans to rectify the situation in the near future either.

Almost every treaty in history was signed with an implicit or explicit threat of violence (some economic, many physical).

Every piece of land that every country owns was taken at the point of the sword at one point or another.

And to answer your question no I don't think I have any right to the wealth of the great great great great grandchild of the thief. Courts would also share my view.

Yes, nobody has the claim including Britain. There's no such thing as better claim. This discussion started because people could not reach a consensus on who has the best claim. Saying that Britain has the best claim is going around in circles.

I think we are on the same page. Instead of pointing out to Britain that you must return it, one should grab it.