Do you think that men who worry about the alpha stuff are underestimating women's ability to act in their long-term interests (reject the dangerous man and wait for a safer one who would protect them when necessary), as social freedom increases?
I want to say yes, absolutely, because as we've seen the internet tends to host that especially creepy sort of disatisfied, hyper-obsessive male who can't get over the way things are changing. But again I have to concede that they aren't completely crazy.
Technology makes the pursuit of the short term easier for everyone, that's threat number one to long-term commitments for any person who is at all sexually desirable.
However, for reasons we can debate, our sexual norms still involve the man as the initiator. Tinder and other dating sites provide ample evidence that even average women will be bombarded with indecent proposals at the drop of a hat, so there's reason to believe that tech amplifies those short-term options for women more than men (and/or for more women than men).
Number two is economic (and theoretical, I haven't actually collected much evidence for this beyond a vew headlines here and there). If a significant part of the motivation for women to enter into long-term partnerships was economic, and now they're more free than ever to establish
themselves economically, then obviously we should expect a decrease in the motivation to do the long-term thing. Their preferences would likely come into alignment more with men's, in other words, with more focus on immediate physicality (contraception contributes to this too). Furthermore, if any innate element of attraction to men still relies on some economic imbalance, the pool of attractive bachelors will be reduced to the uber successful. That's bad for the average man too.
Third and final is a little anecdotal, but I find that women have a harder time acknowledging this duality than do men. Married guys will openly acknowledge that they would happily fuck their hot young waitress, but choose not to in order to preserve their family. Women I find very resistant to the (granted, fairly crude) idea that they would love to be deeply impregnated by the most masculine dude around, but often choose not to again for the stability of the long-term unit. Maybe it is just wrong, but maybe there are psycho-, socio- or ideological reasons for them to avoid accepting this reality. Whatever the case, people need to be comfortable interrogating themselves deeply to give themselves the best chance at succeeding.
ALL THAT BEING SAID, women love families, dude. Media representations of alternative sexual circumstances abound simply because this is so obvious that it's boring. Cuckoldry is a massive risk even when some of it is shielded by the state. Cheating still sucks and is almost unanimously shamed, and comes with the inherent, non-trivial poisoning of the purity and innocence of the family (which is desired simultaneously). It's not an easy thing for moral people to do. 50% divorce rate means 50% don't get divorced, which is the part that blows my mind lol.
Tl;dr the topic deserves a reasonable level of consideration for those with family intentions, but insecure internet dudes are way too hung up on it. There wouldn't be two sexual strategies if they didn't both have some very visceral appeal.