If I knew that there was TB in my child’s school, I would send them to school wearing a surgical mask. There is no reason to expose your child to an infectious disease. That’s like the parents who used expose their kids to measles, mumps, or chicken pox and then have their kid be the one with permanent damage, like loss of hearing.
Political correctness at the expense of others.
If there is TB at your school and the district is non-responsive, I would hold my child out and ask for a new school assignment. I would think the school would have the health department there already responding as I indicated above.