I think it's mostly a social thing or by connection a social psychology thing. I am not a believer in the patriarchy as some say it exists today, I more believe the patriarchy mostly died in the West not too many years ago and some parasites are still clinging on and it also left behind a huge shell that makes certain things difficult for both genders.
It's not an issue of discrimination much anymore, more a psychological social thing where people aren't taking the jobs they would otherwise want in a truly perfect society. Like because artists have been historically seen as male, Apollo even being the god of art and masculinity and all and Athena being the goddess of wisdom and female. This kind of mentality has been in the human psyche since art itself has existed basically so it's hard to shake off. Now is it biological or not? Maybe, maybe not. All things to an extent are biological but at the same time humans are smart enough and have the capacity to shake off roles societal or biological in various circumstances.
Like think about what you see when you imagine an artist. As you said women are basically non-existent in historically creating any artistic revolution or genre. When you think about it in the media or historically or whatever you imagine white men and more recently in the last century or so just men in general since arguably job equality among minorities has equalized faster than between the genders, possibly because the expectations and roles are heavier as well as genetic inclinations more different due to dymorphism and hormones.
This is all just jumbled analysis I have no real reason as to why this is a thing. I'm just in high school after all. You'd need actual like observational studies up the ass to be able to even come close to proving anything about the history of this and the point of my post is that so many variables are involved like genes, culture, psychology, etc are at play that we may never know.
What does matter in the end I say is that people should try to not let media or experiential influences get to them too much and to push boundaries. The real straight forward and boring answer to your question is because women aren't taking these jobs, and the solution is for women to take them. There are huge opportunities for women to take these due to all kinds of affirmative action programs around. Like for STEM fields another currently underrepresented field of work for women if you're somewhat good at them and are interested the opportunities you can get over men are enormous. The same is also true for stuff the other way around. Jobs men are thin in such as pre college teaching, stay at home parents, etc are very very light in men but their numbers are growing. Don't let societal roles define you, you might change them and even go some ways in changing the very genome of the human race to better prepare us for the modern world.
@Freak
He means revolutionary. Like think of a female artist musical or painting or whatever who has changed society and art as a whole. There's basically none. Even the sciences have more revolutionary women.
To add onto this the only thing that seems female dominated is like drawing and painting but like everything else is still generally male as twisty and some others pointed out.