Nobody on this forum will care about what I have to say, since we're all male here, but I'm going to say it anyway, because I think that we should try to understand perspectives from genders of the opposite sex, since they make up half the population.
The groping allegations have not been proven in court (and this far down the line it is unlikely that they ever will see court) - but I don't think they should be dismissed. Women who are groped don't have the wealth to pay lawyers to represent them, when Trump is able to hire lawyers and drag proceedings out - as they have done in the past in many of his court cases.
I think you should understand that women often don't have an economic incentive to come out about these things. One of the first women to come out is 74, well into retirement. Lou Dobbs tweeted the address and phone number of one of his accusers; Trump has said he will sue them and provide evidence that this didn't occur (which he hasn't on both counts); from #NextFakeTrumpVictim you can already see that a sizeable number of people - right off the bat, without evidence - already have a negative view of them and dismiss their claims.
So what did motivate these women to come out? One reason, it appears, is a sense of injustice.
"Donald J. Trump was emphatic in the second presidential debate: Yes, he had boasted about kissing women without permission and grabbing their genitals. But he had never actually done those things, he said.
“No,” he declared under questioning on Sunday evening, “I have not.”
At that moment, sitting at home in Manhattan, Jessica Leeds, 74, felt he was lying to her face. “I wanted to punch the screen,” she said in an interview in her apartment."
[New York Times]
When you have people in positions of fame, power, wealth, who abuse their status - such as Jimmy Savile and Bill Cosby - their victims don't usually have a snowball's chance in hell of obtaining justice in the immediate aftermath of the incident.
And, call me crazy, but when Trump says, in a conversation he thought to be private:
"I just start kissing them. It's like a magnet. Just kiss. I don't even wait. And when you're a star, they let you do it, you can do anything... Grab them by the pussy. You can do anything."
I tend to believe that he's actually done some of these things in the past, and that it's not just a boast he made up.