Whenever you challenge supporters of higher taxes for public education the response likely involves threats and insults. Should you choose to pursue the matter, and ask for specifics the response may again involve threats and insults, along with a lack of specific relevant facts.
A recent opinion expressed here about the finances of public education garnered several responses that included threat and insults, and silence when specific facts were subsequently requested.
For example, how much does one textbook cost in public education nowadays? More specifically, how much does a textbook for history at the 12th grade level cost?