It’s NOT ridiculous to not allow residents of DC to vote! It was the good intention of the framers to try to neuter the power of the city that would become the capital of all the States. Power naturally gravitates to the capital as it is.
The framers would probably have also done something about all the consultant class in the suburbs if they had been prescient. If DC residents want to vote, they can move to Kansas or some other legitimate State.
Oldplayer
The single best destiny for the District of Columbia would be for Congress to shrink the District to consist of only that ground occupied by federal installations. The residential areas of the District would be retroceded to Maryland.