Totally with you!!!!!
When my kids bring home a test paper & know they did poorly on it (Bec their peers told them) I ask them if they tried their best. That's all we ask for. Then we file it.....in the trash.

We tell them we could care less about what grade is on the stupid paper.
Now my oldest, 11yo, might come clean & say well, I could've done better. So we work with that.

They catch on. But I think it helps that kids see what parents value. We value effort. When my 8yo starts to complain & hav a melt down about homework, I draw a line on the paper & tell the teacher that's all we could do. I'm not going to stress at the kitchen table w/her all nite over a math problem. I'd rather pull out a board game & relieve some of that stress.
When my kids come home & tell me recess was cancelled Bec "they didn't have time" I pick up the phone, again, & voice my opinion!
We also opt out of all standardized testing. More useless crap to make others feel better.
I'll stand with you on this one! Definitely!