No not time to stop owning cats, there are other things that need to be corrected before this extreme measure. My cats are inside, have their own outdoor enclosure, and are well looked after. They are better cared for, as is my dog, than some people.
For some people their cat is the only company they have.
How about reducing the cost of fuel to start with; and giving those with solar a decent feedback tarifff, govt is quick to grab money of those feeding solar back into the grid, and making them pay exhorbatent rate to buy back electricity.