If that means painting their teachers as liars, then so be it. If that means getting them not to respect their the teachers who promote this crap then so be it.
By all means fight this through the local school boards but be aware that the teachers unions are very powerful and are not easily moved. Home school if you can but not everybody has the ability to do that. Until we can get this poison out of our schools, it is up to us as parents and grandparents to right this wrong
No, it will not take years..
Run for the school board and take it over...
This is what the democommies did, and we can do it just the same...