Many people may not realize it right now, but the protests, the violence, the chants of "not my president," etc., are only going to hurt the Democratic Party in the long run. Moderates and swing voters are looking at that behavior and they will associate it with the Left. When future elections roll around, those same swing voters may think twice before aligning themselves with the Left because of it.
To the protesters, it may seem like they are standing up for a cause they believe in. Ultimately, they are driving a wedge between the Left and everyone else. Politically, they are their own worst enemy.
Take my opinion with a large dose (not just a grain) of salt...I'm not American.
I try very hard to be a swinging voter here in Oz. A centrist, if you will. I was raised very much left in terms of Australian politics, due to trade unionism rather than any great social leftism, and so perhaps there is a very different dynamic here to the US in terms of a 'typical' left voter profile.
But I thought something of my habits might be important to note.
One of the reasons I AM a centrist is that I think both sides of the fence have idiot fringe elements that are so obsessed with their personal ideologies they've moved well past having any care for society as a whole.
In American terms, I'd be trying to actively discount red-neck gun freaks who are one step away from succession, as well as extreme leftists who think of the world solely in terms of class enemies.
I'd need to actively do this, since the media would commonly be trying to feed me both of these narratives as real and meaningful. But most Dem voters and most Republicans are not part of these extremist viewpoints. Most are worried about their jobs, their safety, their taxes, their kids.
So actually, these demonstrations wouldn't make me discount the left. Nor would the idiotic (in my view) things that some Republican Senators say make me automatically discount the right. Both are flawed, and neither are EVER going to be close to perfect, or close to representing me. Instead, I'd try to convince myself to listen to the next candidate, to try and judge the likelihood that what they say represents what they do, and try to force myself to make a decision based on that, deliberately swallowing down some of the baggage we all carry in order to do so (in my case including the fact that my parents would NEVER vote right).