Why all the anger? I may read on different philosophies and religions that I do not fully or partially agree with, practice or believe in, yet I may find useful

Why all the anger? I may read on different philosophies and religions that I do not fully or partially agree with, practice or believe in, yet I may find useful life lessons in each, or drive pleasure just from the act of reading. I do not regard any of them as "bullshit" just because I do not understand or share their opinions.