Your argument boils down to this then.

Beyond looking at some pretty pictures, you've clearly read fuck all about Solarpunk if you think it's normal to say it could be built on slave labour. It's generally depicted as some form of anarcho-communism, although other flavours do exist. But I guess that's not your flavour of left, not Soviet enough for you, and must therefore be brandished as bad, evil, and fascist.

As usual, the Marxist Leninists stomp on the Anarchists at the first opportunity. Aiding the Capitalists while professing to be on the side of the workers.

Give some manual labour a go instead of putting down other left movements. Actually do some physically demanding work. It might help you appreciate why people who swing hammers all day, every day, don't want to see hammers in their art after work.