Yes, it would be best to be able to deny them our tax dollars as punishment for promoting a harmful ideology on our society, but at the least, get your kid out of there.
1 Cor 15:33
Do not be misled: “Bad company corrupts good character.”
Ephesians 4:14
Then we will no longer be infants, tossed back and forth by the waves, and blown here and there by every wind of teaching and by the cunning and craftiness of men in their deceitful scheming.
There are no passages which say that good character affects bad company, especially among children.
Think of it this way - McDonald’s food is not the healthiest for your kids, so even if you do give them $20 per week and don’t go, your kids would be better off.
I think it would be better to work on that $20. Or better yet, make a lot of noise.