I think these over-the-top in your face displays of outrageous racist/marxist forced indoctrinations by school officials and their enablers is a wink wink, nudge nudge, for some irate person to take matters into their own hands, giving them the smoldering Reichstag they want so much. Nothing’s too low or diabolical for them.
And that is why the best response is not upset or violence, but sticky sarcasm and contempt.
During the HUAC investigations of communist infiltration into the US government, field investigators learned a very useful technique to determine if someone was a bona fide communist fanatic, a technique which applies to all fanatics.
Tell them jokes.
A true fanatic has a very limited and rather brittle universe of ideas, their definition of reality. Anything that does not fit into this worldview is ignored as a non sequitur. Reality for a communist fanatic is limited to The Communist Manifesto and Das Kapital, and likely a few other hard core communist writers.
Humor and laughter are to a great extent a protective mechanism for irrational or surreal information, but they are an alternative set of tools for non fanatics.
Bottom line: True fanatics cannot produce genuine laughter. Reality is either doctrinal or disregarded.
Just as importantly, they cannot mentally deal with others laughing at them. Sarcasm and contempt truly messes with their heads.
They can deal with rage, anger or violence, because these are things described in their holy books. But they cannot deal with those who make fun of their beliefs.