UncleDemp references as fundamental a truth as there is. Disagreement in no way, shape or form should partake of contempt - because it hurts the contemptuous (in real time) even more then those they seek to hurt. Love derives from our most powerful instinct, empathy. There so the human race continues. We wouldn’t procreate enough or raise the offspring otherwise. When others fight for the right to show contempt (one small example only) say that they're intent on correcting pronunciation they are knowingly, gleefully spitting on the spirit of a message to focus on the very technical letter of it. These people almost inevitably have the control issues of someone desperate to control outside circumstances & people - in a fruitless attempt to so ineffectually compensate for their own out of control anxieties, fears & unresolved angers. Being annoyed with them is allowed as long as you also feel compassion for how much pain they’re in & how poorly they camouflage it. It’s a desperate cry for help, the intense irony of it being they won’t consider considering accepting any (from themselves by being mature and/or kind) or anyone else. That hardly means they should be excused however.
The meaning of life at bottom is to learn & the rest of us can learn a great deal from their refusal to. G-d Bless.