let's define some terms. "meaning of life" (note i didn't say purpose) = reproduction, as far as anyone can tell. a single man can impregnate scores of women, and then die the very next day. the same can't be said of the female reproductive paradigm. for full replacement rate-of-birth, damn near every female is needed, and the other 99 men aren't... technically. however --
modern society has attempted to socially engineer this hasty biological truth out of male populations - it attempts to normalize male achievement and distribute the proceeds in a more equal manner. hence the social traditions and mores that have come to define the last few centuries (i call it the 3 M's - marriage, mortgages, and missionary)
furthermore, society interprets "men" as the top (physically, socially, financially) 20% of men, the men who make a real dent in the world and who override the general perception of masculinity in society. the high achievers, the genetically gifted, the powerful. the stereotypical 'man'.
however, the truth is most men aren't that archetype. most men are workhorse peons that get the shit end of the deal, having to endure living a modern subsistence lifestyle that consists of cheap housing, cheap food, cheap relationships, cheap labor. our (i hesitate to say western? i mean these days it's all over the fucking world) society has so far successfully plastered over this truth with an embarrassment of material and technological wealth (especially tech wealth in the last 10 years, for goodness' sake think of how many hours one could waste in imaginary world of all sorts), but the ruse may be soon up.
it's true and you can verify it just by looking around - the rest of us men are either invisible, relegated to uncelebrated mediocrity, or become hermits of some sort or another. it's extremely difficult as a man to reconcile the societal and sometimes familial expectations of being into the top 20%, and the slow burn of your 20s, 30s, 40s, 50s, straight into the bottom half of society.
to me it's absolutely clear why men decide to check-the-fuck-out, whether through technological, societal, or mortal means. we shouldn't be focusing on the problems, which are clear as day, we should be focusing on the solutions. i fear that my industry (tech, software, automation, whatever you want to call it), in which i am a vanishingly minor, yet complicit conspirator, has only hit the accelerator on the depreciation and obsolescence of the vast majority of men.