Obvious disclaimer: I don't literally think all men are incapable of deep emotional connection but it's hard to express nuance in a short title.

It seems RP talks a lot about women being unable of loving a man the way he loves her. The claim is usually that 1) men love women the way women love children (because they feel the need to protect them) and 2) women's hypergamous nature prevents them from permanently committing to one man. The manosphere paints a picture of a man's love being some sort of pure undying devotion for his partner who is in turn painted as a harpy who leeches off her man until she branch swings to the next one.

But it seems to me like the total opposite is true and a lot of rp theory and anecdotes have me wondering whether a man can really love a woman the way she loves him.
Points to consider:

Polygamy is a male imperative. This is RP 101. How can anyone claim a man can truly devote himself to a woman when it's his imperative to find other women.

Men are much more objectifying. I don't mean objectifying as a cliched buzzword but that simply put men want a woman for what she can give him (mostly sex). The media and most people's personal lives are rife with stories of men fooling around with their secretaries etc. not to mention RP portrays a middle aged man spinning multiple plates in their 20s as the ultimate male goal/fantasy. Men form relationships because they want sex and once they get a whiff of greener pastures (that doe eyed young secretary that just joined the office) they quickly ponder upgrading their apparently beloved wife for the newer model. It often gets said that women want to leech off a man's career, but I would argue (and most women would testify) that women en masse want a man with money/career not for the sake of the money itself but for what that money implies about his personality and status.

The very existence of the manosphere should be a testament to my point. Men have written blogs, began forums and forged a community where they 1) complain about their spouse and the apparent entrapment of marriage, and 2) trade methods/advise on how to leave your spouse, convince women in their 20s to sleep with you, and prevent yourself from developing attachment to new lovers. No where do you find man hating of this caliber. There is no community of women who get together to talk about how terrible the opposite sex is, or how to manipulate them into handing over resources, and those small niche collections of people who do that are shunned by both men and women at large.

With the amount of bitterness flung at women in the manosphere, with near all men fantasising about keeping a harem of gorgeous 20 somethings and with how men reduce women to only the sex and fun times they can provide them it is obvious men cannot even respect women let alone love them anymore than they love their favourite toy or restaurant.