There was definite rage from parents, with lots of school boards having to call the police to their meetings because of threats - on a nationwide level. Watching these board meetings has been fascinating to see the parental behavior.
I followed our local parents in my district pretty closely, who created a Facebook group to coordinate their efforts. While they remained calm when speaking in front of our school board (I do give them a lot of credit for that), their online messaging consists of full-on rage. When our school district wasn't fast enough for them in adjusting their mask policy, they threatened all sorts of action against them. The district asked parents for their patience throughout the process, however, these parents refused to be patient and demanded that they capitulate. A few parents kept the pitchforks out, even after the policy was adjusted, with statements that they will never let this "abuse" happen to their children again. The anger about their children having to wear a paper mask when at school drove them to a fervor. I monitored it just because I didn't want to be dropping off my kid at school and being surprised by a protest or something more serious. Sadly, the BLM riots and January 6th showed us that when enough people on one side of a political belief get worked up enough, they can be driven to take things too far.
Like you, I'm indifferent. When covid numbers were big, I felt like masks were justifiable. They truly have their use to help reduce transmission within a population (in this case, children in a school), and if they didn't work, doctor's wouldn't wear them when performing surgery. Now that covid numbers are a lot less, I agree with the decision to take the masks off.
My point was that it's nonsense to just dismiss what masks do by saying "they don't work." Well gee, the timing on the stomach flu and colds keeping kids home is impeccable. I know we're not going to be illness free, but to sit back and say "masks don't work" and being angry about kids having to wear them....while not being bothered by having your kid miss 50% of their school days over a period of 2 weeks seems ass-backward to me. Heaven forbid your kid have to wear a paper mask at school, but we're perfectly fine with calling them out of school repeatedly because other kids keep getting them sick.