It does appear that, all else being equal (height, hair and $), for over 40 guys, the divorced guy has an SMV edge over the single never married guy.
The divorced man may have an advantage, since he has already committed once, there is a likelihood he will commit again. In contrast, the single, never-married man may be less likely to commit, or even if he did want to, the women he dated might not have been interested in his commitment. Some of these men are often referred to as “serial daters.”
Women are more likely to play the odds, favoring men who have already demonstrated the capacity for long-term commitment.
A divorced man carries baggage, has broken the marriage vows, has demonstrated poor judgement in picking his wife.
How the heck is this increasing his SMV in the eyes of any sane woman who doesn't have a truckload of baggage herself?
It's worth examining these quotes from the perspective of 35-47 year old females evaluating 35-47 year old males.
@pipeman84 's comment is accurate and logical. However, women 35-47 in the USA (and most Westernized countries) don't think that way.
Most females 35-47 years old who are on the market have a decent amount of baggage. Even a 35-40 year old Millennial woman who has never married and is childless often has a decent amount of baggage from riding the penis carousel and putting up notches or having multiple failed longer term relationships (typically 1-5 years) over a 20 year period.
Most women and most men 35-47 years old are looking for monogamous, pair bonded type LTRs.
Women in that age range tend to think that divorced men are better bets because they have shown the capacity to commit. Divorced men can sometimes lose points in the eyes of some childless women due to a messy co-parenting situation (most co-parenting situations are some degree of unpleasant). Many childless women want to avoid that if they can.
With 35-47 year olds, a very common pairing is a divorced, single dad and a divorced, single mom. Since I have never been a divorced, single dad and have few interactions with divorced, single moms (I try to avoid those women), I can't speak from direct experience about this pairing.
Why would a woman choose to invest time in a man who is indecisive, has commitment issues, or lacks clarity about what he wants?
Older, never-married men often have a pattern of short-lived, unstable relationships and seem perpetually dissatisfied. Either they’re unwilling to commit, or others aren’t willing to commit to them.
This is true because of female desire to pair bond in her 30s-40s. This must be considered as women are the gatekeepers to sex.
I am an early 40s never married and childless man. I think some women would judge me negatively for that. I haven't felt too much negative feedback from being late 30s/early 40s, never married, and childless. Most of my interactions in recent years have been with 30 something Millennial women who are also never married and childless. I have perceived that these women consider my status as never married and childless an asset.
I have had short-lived, and unstable relationships. I have been unwilling to commit in certain circumstances and there have been other times where women were unwilling to commit to me.
I could have gotten married by now. I perceive that if I had gotten married prior to this point in life, I would be divorced by now. The combination of divorce statistics, personal history in interactions, and family history are the reasons that I arrived at the conclusion that I would be divorced.