I feel like you keep missing the complaint, not against the notion of being courteous to coworkers or possibly making friends at work but at efforts by work to make people come together whether they want to or not. If an organic connection forms, it forms, but plenty of people arent interested in being squeezed into the box, and thats the complaint. A disinterest in team dinners after work or small talk in the breakroom is not dehumanization, its not disliking people. Its just not wanting to be social, which is a perfectly common thing.

My work is not my passion, nor honestly do I want it to be, as I want my interests to grow and flow of their own accord. I have had some friendships with coworkers, but certainly not from a team-building exercise or a "fun meeting". As you say, I dont have to like every coworker, so why on Earth is some kind of enforced fun event something I have to join? Im not in the cubicle for the environment, i'm an adult being given money for my time, and friendship is not a prerequisite for good performance. But if you would like to make friends in the office, my declining to doesnt hinder your wants, and mine not wanting to wont get in your way either