I agree that there's a ton of parallels between now and the period just before WWI (e.g. I've only recently realized how much a tangled web of alliances the Middle East / North East Africa is).
But of all the parallels that could exist, I really think the "men aren't manly enough" attitude we see today / saw them is not a good indicator of us heading towards the next world war. And even if you think it's a good one, I also think there are just way better indicators, to the point that recruiting propaganda trends aren't going to be a major contributor.

brigades were talking about it), mass media controlled by the ruling class misleading and outright lying to the general population (I'm sure everyone has seen the modern day examples, and for an example for WW1 let me plug a post I made on