Some 30% of NY state and ~48% CA population is already on medicaid. Are you gonna make a whole middle-america flyover town work an extra shift to pay for that plan?
In any case, I don't see how the state net revenue balance is relevant as a justification for this - all that's saying is california has fatter tail on the income distribution. You don't "own" those rich people, as the high-tax states are coming to find out with the mass exodus to florida.
Definitionally 4/10 of california residents cannot be in poverty.
BTW, your stats are way off, CA is at 33-34% Medicaid utilization. Below several red states.