We don't spend 50% of state budgets on primary/secondary education.

It does if you consider the part going to your county:

“In 2022, the federal government spent … This is 13.6% of the total spent on elementary and secondary education in 2022. The remaining funding comes from state and local governments, which contribute 43.7% and 42.7%, respectively.”

You've misread that. It is not saying that 43.7% of the state budget goes to elementary and secondary education. It is saying that 43.7% of the funding for education comes from the state. Those are completely different.

No. If 20% of the state budget is then that amount is matched by an equal part local. So state + local education would be 40% of the state budget.

education (property tax) dominates local spend. So yes we do tax and spend extraordinary amounts on education.

20% of your money and 20% of my money is not 40% of our money.

The most recent number I could find is from 2021, and on average, states spent 21.5% of their budget on k-12 education.

The state and local pay about equal portions. But do you have anything to say about the argument in my comment?

Was there an argument? Lots of places in the world have state-backed top-notch free education, without the guns and violence.

What argument?