Well, no. Paying professors isn't free. Some places just hide their salaries in their tax money. But sure. Everyone gets education (I agree with this). Some people choose to be artists and... I guess they just fend for themselves?
Now, let's be absurd. Pretend I'M a artist. I made a blank canvas, and I'm willing to sell it.
I don't disagree with any single point that you've made. I agree with most of them.
But you mentioned linux. Tell me again, Linus Torvald, was he employed under a capitalist country when he created linux? How about most of its contributors?
Your point is easily defeated. Please make a better argument.