I'm not sure there's anyone, apart from HR, (but they live in a parallel universe totally separated from reality) men or women who think it's a good idea.
Obviously the men are clearly discriminated against on the basis of their gender. The women, on the other hand, who are advantaged by this policy, will always be stigmatised as people who only got the job because of their gender. The sad thing is many of these women would have made it in their chosen profession purely on their own merits and abilities. Sadly, they'll be forever tarred with the same brush.
This, and other HR thought bubbles, are a classic example of what happens when academics have free reign. HR parasites spew forth from universities without an iota of real world experience. Everything they know has been taught to them by academics, regurgitated from text books written by other academics. It's a complete farce. Most of them only did HR degrees because they had no drive or ambition to make anything worthwhile of their useless lives anyway. Finished their HSC and their parents told them to get out and get a job or go to uni. HR was the easiest option.
Ever want to see what the end game is? Have a look at the public school system in this country. A system run by hard left fruit cake academic women, pushing their leftist ideology where knowing the name of your local aboriginal tribe is more important than learning how to read. That system is a completely unworkable mess. That, ladies and gentlemen, is exactly what will happen in any industry that doesn't realise what harm HR and their lunatic nonsense is doing.