If a territory or district has more population than an existing state, that’s a compelling argument that it should qualify for statehood. What’s good enough for Wyoming ought to be good enough for DC or Puerto Rico. Government should represent people, not some arbitrarily drawn map abstraction.
I’d also support collapsing all of those tiny sparse Western states into one state with a population more comparable to “real” states, but that’s not happening, so statehood for DC and PR it must be.