Something about the way you worded this isn't sitting well with me.
I didn’t mean to say a fighting chance to resist harassing women. Sorry if I wasn’t clear.
What I meant to say was that despite hilchos yichud life is meant to be a test, and one of life’s greatest tests (and potential for growth) is in this area (זהר- פרשת נח-כל מאן דנטיר האי ברית דעלמא אתקיים עליה, אקרי צדיק, מנא לן מיוסף, בגין דנטר ליה לברית עלמא זכה דאקרי צדיק). So there will be those who point to men who succumbed despite these gedarim, but that is not a reflection of the gedarim, rather the fact that we are meant to use our bechira to grow, and that is only possible if it is still a real challenge that we have to “fight” (struggle- if that sounds better to you) to overcome and thereby fulfill the purpose for which we were created.
On the other hand, without these gedarim there is little hope- that is the way we were created. Sure it is potentially possible; much of hilchos yichud did not exist before the time of Dovid Hamelech and there were many tzaddikim. Even today there will be a significant number of men who don’t engage in this sort of behavior even without hilchos yichud, but I would venture to say that today the vast majority of them probably have more to do with their own nature and temperament, and the environment they find themselves in, rather than a conscious personal struggle to overcome their natural inclinations.....