There's no anger here, only frustration over a society that normalizes permanent childhood. Adult crying over trivialities - or worse, Bernays-style manipulation - is symptomatic of an inability to manage one's emotions. The defining characteristic of transition from childhood is cognitive mastery over emotional whim.
“Critics who treat 'adult' as a term of approval, instead of as a merely descriptive term, cannot be adult themselves. To be concerned about being grown up, to admire the grown up because it is grown up, to blush at the suspicion of being childish; these things are the marks of childhood and adolescence. And in childhood and adolescence they are, in moderation, healthy symptoms. Young things ought to want to grow. But to carry on into middle life or even into early manhood this concern about being adult is a mark of really arrested development. When I was ten, I read fairy tales in secret and would have been ashamed if I had been found doing so. Now that I am fifty I read them openly. When I became a man I put away childish things, including the fear of childishness and the desire to be very grown up.” --C.S. Lewis
Crying is a normal part of healthy adulthood. Not bawling your eyes out screaming like a toddler crying, but shedding a tear or a few during an emotional moment. The defining characteristic of modern society is how it shames you for betraying your authentic feelings.
> The defining characteristic of transition from childhood is cognitive mastery over emotional whim.
Just because adults CAN suppress almost all emotional reactions doesn't mean that we should. Believing that certain emotional reactions should never be expressed, or that expressing them over 'trivialities' is bad, sounds like a very immature view of adulthood in my opinion. Shedding a tear when you are confronted with an image you find beautiful or poignant seems is one of the greatest things about being human. I'm only engaging in this conversation because engaging with my emotions rather than stifling them has been one of the most rewarding challenges of my life and required analyzinh a lot of my own programming. You have no idea what you're missing if you don't try.