Schools, especially primary schools, are devoted to conformity, social acceptance, and political correctness

Bingo and well said! We condition our kids to accept everything they read in their textbooks as fact. Critical thinking is key and missing.

When I was in grade 3 on MLK day our teacher split our class into 'races' by eye color and gave blue eyes treats made the brown eyes do work, it's a known/controversial exercise meant to teach about discrimination, which it did, but also it made us question authority.

We should create exercises where teachers/staff purposely present incorrect or conflicting information to students, forcing them to regularly question the quality of the information and the motivations/agenda of the source.