Even if window AC units were the sole source of climate change energy use, who cares? “Efficient” appliances have always just been a twofold gambit.

1. Gives companies an excuse to upsell people on equipment they don’t need to replace yet
2. Let’s energy companies be lazy and not scale up grids like they should be doing

It’s all just about capitalist profits.

If you put a window AC unit in a field with a solar array to power it all day, it would make zero difference to the planet.