Good art will always find its audience, it doesnt need to be a commodity or institutionalized.

How though? It doesn't need to be a commodity, but any kind of display of art by not-the-artist is some kind of institution, whether it's a museum, an online archive, a concert venue, etc. How would art finds it audience if not through some kind of institution?

I think people are alienated from the arts so they appear to be uninterested in art. I think art is an essential part of humanity. If given the knowledge, the community and tools to do art, no one would pick miner over art/music/literature etc.

Maybe so, but I really doubt that everyone would pick to be a specialized artist over some other job that is self-actualizing, like a doctor or a teacher. You are fixated on this miner example as its a difficult, tedious job to say art should not be a specialized profession. I think that goes too far and ignores real differences in preferences that will always be. Even if everyone wants to make art, maybe that's true in an unalienated world, if they want to at differing degrees, that's enough for specialization.

Insanely specialized artists should be earned by a society that can reasonably accomodate them and not fuck over some dude working in a mine.

There are enough resources today to accommodate both specialized artsts and miners, and every other job. I think this buys into the false idea that scarcity is what impoverishes workers doing things like mining and not the allocation of existing, plentiful resources. I don't want to fuck over the guy in the mine. I think the example of the DPRK is a good one here, where mining jobs are highly, highly rewarded to compensate for their lack of appeal. Society can support artists and support miners, loggers, garbageworkers, etc. even more