Yeeeea, if anything the dems and all their supporters pretty much handed the election to Trump. Wake up call, guys, maybe alienating anyone who doesnt imediately agree with you by calling them huge racists, bigots and misogynists isn't the best idea ever for a presidential campaign. All around the world, the news were all positive towards a Hillary win, but only the actual loud crazies took Hillary's campaign seriously. While she was hailed as a saint by the media (so much, in fact, it was almost cartoonish), pretty much nobody actualy took her seriously, while Trump was seen as a guy that, despite getting beatdowns over and over by big media, always somehow seemed to come out on top, even when he didn't have full republican support.
IE, the dems made everything so cartoonish and infantile that everyone just got fed up. Additionaly, the democratic party associated itself with stuff people are not entirely happy with (black lives matter, saying banning milo from twitter is ok, attacking more centre-leaning liberals like sam harris because he's not very fond of islam OR Hillary even though he admitted he'd probably vote for her, etc).
Also, here's a rather big reason Hillary's campaign failed so massively: when faced with all the scandals and accusations thrown against her, nothing much other than utter dismissal was done about it, while at the same time a lot of shit got thrown at Trump, and Trump being Trump, took things at face value and counter attacked, specially in the last debate, even when the media was pretty much ALL Hillary, to the point CNN literally cut off people on air when they wanted to talk about wikileaks stuff on Hillary.
Do you really think people will look at that without as much batting an eye?
What happens to your image when 80% of the people defending your campaign on twitter consists of loud mouthed people who who surround themselves only by people who agree with them and attack anyone who doesnt?
What happens when there's huge infighting and name calling because the more centre leaning liberals don't like hillary at all?
Hell, Trump supporters would just get shut down, told to shut up and banned from discussions simply for not agreeing with the stablished idea in the media of Hillary being a saint. Hell, I watched this happening right here on this very topic, and even warned people that said behavior would come back to haunt them.