I hope not.
I think teachers should teach to the status quo and let students when they are older or their parents make the decision about what they are going to protest, and what changes they are going to push for.
In general, I think students, especially young students, should be shrieked from the ugliness of life as much as possible so they can focus on learning the educational and social skills that will help them in life. Teach to give them the tools so that they can make their own decision when they get older.
Otherwise, if teachers are really using their pedagogy as protest, expect to see even more erosion of support for the public education system, and even more fracturing of the social bonds as schools are chosen , not for their ability to educate, but whether what they indoctrinate matches up with their parents’ wishes.