The societally widespread expectation that you will be empathetic to other people's - especially unrelated males' - problems IRL.
"Women [as a class, I guess?] don't care about male loneliness/incels/the male suicide rate/tfw no gf/tfw divorced/being expected to pay for our children/MALE PAIN" - well.... no, duh, obviously? We have our own personal men and children to care about and empathise with, and the leftovers tend to go to unrelated kids and all dogs, in that order? As the legend Peggy Bundy once said, "I have real problems". Well, I don't really, but I sure as fuck don't want yours.
"I AM A RANDOM MAN AND YOU SHOULD OFFER ME EMOTIONAL COMFORT AND EGO STROKES" No dude, I really DGAF, go find someone who cares about you and share your need for emotional input with them. Go and talk to another man about your man problems. I don't have any relevant experience or shared class consciousness with you, and also, this is a wife job and I'm not your wife. Please go and ejaculate your feelings elsewhere, you are ruining this fucking party/day out/errand/school event for me.
On the internet, I'd be happy to give you thoughtsnprayers, or pass respectfully by without interacting, but this is IRL and you are in my IRL face demanding my IRL attention. No, no, no. Not cool.
Like, what is it about my presentation that made you think I care? Is it because I am short and unthreatening? Why are you trying to pull some kind of emotional vampirism on me? Aren't there like, men's groups or therapists you can talk to? We're not fam, we're not friends or bredrins, I have nothing available for you.
Some fucking autist at a dinner party once said "but you just seem so warm and approachable and caring" and my husband nearly choked to death laughing. It's called courtesy. Please, please stop mistaking courtesy for some kind of availability. We don't want 'emotional connection' with some fucking random male stranger. Women? Women are fine, I talk to strange women and old ladies in the supermarket all the time. Men are a no pasarán. I have a husband thanks, I don't need or want to chat some other man.