Loser is relative: losing at what?
Not kissing a girl doesn't mean you lost a footrace or an MMA competition.
Expressions like "losing at life" at bullshit, it's putting foids on a pedestol.
Kissing foids is great and all assuming you enjoy it (pointless if you kiss some repulsive thing just to get a notch) but it's an accessory to life's greater purposes, not the central purpose.
I think in a way the excessive romanticism in culture/media is basically done to try and make males forget about greater deeds like building barns and shit.