From what I can gather, this particular design was proposed by Puerto Rico's New Progressive Party (Partido Nuevo Progresista or PNP), which advocates for Puerto Rican statehood. The circle definitely has its appeal, though I think I'd prefer something closer to the current flag.

This is turning into the flag of Earth from Futurama

I think New England should secede. We could use a modified U.S. flag: thirteen stripes and a blue field with six little stars in the upper right corner.