What if we rephrase the OP's question?
Does admitting we are all capable of infidelity make it more understandable?
Does that also apply to rape? Since anyone is capable of rape its understandable?
Driving drunk?
Murder? If everyone is capable of murder does it make it more understandable?
Under the wrong circumstances?
This view resonates with me. We re ALL flawed and "capable" of doing horrible things such as this list. Another would be cannibalism. Plane crash in the Andes. No food, no hope of rescue…….Does Jeffrey Dahmer now get a pass? Of course not! These are totally different situations! Exactly!
But yeah, I don't think anyone is immune. They just haven't had the right convergence of circumstance, person, and opportunity yet. Some may never see that perfect storm. Maybe even most, but I believe anyone is capable now.
Again, I agree everyone is "capable", but this view diminishes the fortitude and morality very much demonstrated by people who have remained faithful.
I also hate the term "Perfect Storm" as it relates to Infidelity. Even the book and movie of this name is a great example of how the protagonist made several stupid, greedy and selfish decisions that placed him in harm’s way. He also ignored multiple warnings not to proceed and to get out of the storm’s way. Much like people who cheat, there were many, many opportunities to make different decisions and take different actions other than the ones that led to his and his crew’s ultimate demise. It wasn’t a case of "lo and behold, we found ourselves in the middle of this once in a lifetime storm with zero warnings"….
I have had dozens of opportunities to cheat. I worked as the GM of a full service restaurant that served alcohol adjacent to the campus of a huge University. The servers and bartenders were largely college age women willing to offer sex to the bosses to curry favor. Or maybe to see if they could just "bag a young married man". Who knows? But I spent WAY more time and effort fending off aggressive sexual advances during the early years of my marriage than I ever spent pursuing them when I was single. At this time I was being cheated on, had sex withheld by my wife and was told she didn’t love me. I was in my mid to late 20s. I resisted. Not quite the "perfect storm" then? Seemed pretty damn close at the time. But still I resisted.
Later in life, I was an executive in a large Bank. Again, lots of women "pursuing the boss". I would shut that shit down immediately.
It’s something I am proud of even though I have moments where I say to myself "Why did I bother to remain faithful? My wife sure didn’t. I was preserving a marriage that was dead."
But my not cheating isn’t because of my own morals, diligence and boundaries? I just haven’t experienced the "right convergence of person, circumstance and opportunity yet"?
Well, at this point, I doubt Phoebe Cates is coming out of my pool either (and we ARE the same age and she’s STILL fine) so maybe I’m safe at this advanced age……