It takes a lot of time to develop that craft, which won't be available to you if you have to do drudgery to keep a roof over your head. You're arguing for art to be at best a hobby, and full-time pursuit of it to be limited to rich kids.

Also I take issue with your argument about 'none of the jobs we do now' existing through most of history. Farming, construction, fighting, bookkeeping, cooking, transport, security are all jobs that have been around as long as people have lived in settlements.

Sure, you could point to the long history of nomadic hunting and gathering prior to that, but that's like expanding your argument back to the origin of cellular life or forward to the heat death of the universe in order to make your interlocutor's arguments look insignificant on a cosmic scale. It's not a helpful contribution to addressing the real challenges of the present.