It would be good to be able to understand why and be able to change that.
I haven't read the entire thread, but I'm guessing there are sufficient examples in here of women's personal experiences, as well as across this board and elsewhere to give anyone a reasonable idea of why many women feel the way they do about men in general. What exactly are you finding difficult to understand?
As long as male violence and manipulation exists, there will always be women wary of men either due to direct or indirect experience. It is not just rape or domestic violence that women worry about. A man need not lay a hand on you, but can still intimidate and coerce and control his partner by various means to undermine her self worth and confidence. Women are capable of this too, but since the vast majority of women are heterosexual and this is a board about women's rights and experiences, then the conversations here will gravitate towards what women have experienced in their relationships with men. Some women are incredibly lucky and haven't had negative interactions with their fathers, sons, colleagues, partners, friends etc.
Men can examine their own behaviours and seek to improve themselves (as we all should!) and do their best to treat those around them well, teach their children the same values etc. That's really all anyone can do as an individual.
On a societal level, it would be good if predators and abusers were properly punished. So many rapists stroll out of prison in a few years while their victims suffer a lifetime of trauma. Abusive tactics are ignored even in plain sight, allowing women and children to be targeted again and again. And now women have to fight all over again for basic decency like survivors of rape and abuse needing single sex services, but being labelled as bigots for saying so.
It's not the job of women who are already struggling with their shitty experiences with men to have to find yet more ways to soothe the hurt feelings of other men.
When the overall negative experiences are reduced, then there will also be less women who are hurt and scared of men.