You mean nonvoter. Someone who stayed home is by definition someone who did not care enough to go vote, so there's no evidence they supported clinton over any other candidate.
> the Bernie Bro smear
As far as I'm concerned anyone who considers this a 'smear' (implying any credibility) just feels or felt entitled to votes because they made the mistake of trying their own 'lesser of two evils' fearmongering koolaid.
Neither party convinced me to vote for their candidate, and adding my support to third party candidates would just have provided them to another statistic to blame.
> The good news is that even Bernie could come up with a message that resonated enough to get as far as he did with as few connections as he had. Someone else could do the same.
I'd be amazed if anyone wanted to at this point. Most politically interested people I know've left for greener pastures.