Democrats, not so much. Democrats vilify each other in primary campaigns in which they spend as much time and energy attacking each other as Republican office holders they are trying to replace. The primary season is when the Democrats write the negative ads about Democrats that the GOP will use in the general election.
Compare: Republicans keeping their unity and directing their fire on Democrats leading to increasing political power and the ability to shape public debate. Democrats fractious and disunited, criticizing each other remorsely leading to decreasing political power and an inability to shape public debate. Maybe, just maybe, Democrats might want to rethink this.
Consider the huge debate about whether Senator Clinton has sufficiently 'apologized' for her vote in 2002 for the authorization of military force act. (She says that if we knew then what we know now, there never would have been a vote.) For all the clobbering of her vote then, what is forgotten is that George W. Bush had misled the country about the intelligence, and the Republican majority of the Congress was united behind Bush's policy, and that the United States was going to go to war with Iraq, even if Mrs. Clinton had immolated herself on the Senate floor in protest. Was her vote unwise? Yes. Was it decisive? No. Do Democrats need to focus our energy on building the narrative that Democratic politicians are politically calculating and inauthentic? No.