See even though I mentioned earlier that the only purpose they may serve is as a tourist attraction, I think that if we got rid of them tourists would still come to Britain to see all the historical locations.
Also, as we, the public, paid for the Royal jewels and such we could claim them back and keep them as tourist attractions or better yet, sell them to some eccentric Japanese billionaire, because believe me, in this day, them jewels are worth a bomb.
The wealth could then be distributed back to the people whom the Royals have stole from for centuries.