But Charles II was after Charles I had been executed! Times have moved on.
But if Harry were removed, Archie would be next in line, which puts Harry right back at the centre, particularly if Archie was still under 18. And if you meant to remove his kids at the same time as him, that leaves us with Andrew!
Assuming you object to him too, that would give us Beatrice, by which time the country would say 'look, if we're picking and choosing, we wouldn't choose her, so let's just end the whole thing.'
I agree, if there were no William, G, C or L, the whole thing would be scrapped.
*edited to correct typo and to add the public's rejection of Beatrice wouldn't be personal to her but just because of the ridiculousness of the whole thing