I dunno, It's not that easy to pick a life partner and I feel that guys have less power and options in picking, I assume the author is a lady. I have no doubt that women in general have the upper hand in picking.
I see all the times girls getting the guy they prescreenaly PICKED, the scenario typically goes like this: Girl likes guy, she overly talks and flirts with him and in no time he's her bf, and maybe later on her life partner.
And even if she's more traditional and less proactive, she would eventually be asked out by suitors and can pick to say yes to the best option(s).
The only category of girls who have no such power are those who never proactively go after the guys they liked *and* very rarely get asked out. But most typical girls learn early how to doll up themsleves and how to flirt.
The only picking part from the typical male perspective is in the pool of ladies they pick to pursue, often based on vague criteria, and he tries to ask them out one after another till he gets a 'yes' - and he goes for it hoping she's the one, if doesn't work, he goes on the process, this is more apparent in online dating. All this doesn't give much picking power for the males: For one, the young male might be targeting the wrong pool altogether without knowing it, and for two, after taking corrective mesures in the pool selection, hoping his one is there, but that often means a smaller pool and therefore less chances to get "yes".
Gloomy, right?
In general, in the "dating market", the males are more like the job seekers, the latter have little power to work for the company they really wish to work for so their best bet is to sharp their skills and apply and hope they'll be picked by one of their dream companies, while women are more like employers -and better if proactive - like headhunters, of course the employers hire the wrong candidate sometimes.