The process of categorization isn't dehumanizing. Fi-users as well categorize. It's a way to manage the world. The moment however it becomes dehumanizing is when you fail to categorize all the information, especially that relevant to humans. When you fail to recognize that despite your categorization, each human is still unique and you would need to know their background and their views on the world in order to judge perfectly which likely category suits them best. To not do so, to jump to conclusions and scream 'I have the answer, I know, I know, shut up, I know how you function!' is annoying and hurtful...as you yourself, ironically, have found to be true at the hands of Fi-users having a lazy or emotional moment, causing those prerequisites to go out the window. Unfortunately, Ti stops the moment it thinks it's figured out the system. And doesn't realize that that..well, that's only the beginning. The real work still follows, as that person can finetune your complex system in ways you haven't imagined. And unless you verify for real that you are in fact correct, you're an arrogant prick in my books.
Don't get me wrong, I too get lazy and presumptuous, when recognizing signs in others that instantly make me go: ohh that's how they work. But I try very hard to check and recheck, before I file them away. They're humans. People. And there's more to them than you seem to give them credit for. Your loss, their pain. Lose-lose, imo.
I appreciate your kind words, but those threads have really taught me one thing. People don't want to understand
/withdraws.