The threat to our democracy isn’t partisanship on both sides; it’s intolerant white Americans that are prone to authoritarianism. When the imagine that their white identity is threatened they support undemocratic, authoritarian rule. And of course Dump is the perfect authoritarian to stoke their prejudices to impose undemocratic restrictions on some of the population. Which is, of course, a “repudiation of American values and democratic commitments.”
Of course this phenomenon has been going on before Dump; it’s been in the Repugnantan playbook for decades with vote ID laws and other voter suppression tactics that are specifically aimed at those of color. So it’s no wonder that Dump comes along and takes over a playing field well prepared for just such a racist authoritarian.
So remember that what’s going on is not equivalent on both sides of the political spectrum.* Liberals may be partisan but they do not suggest laws that curtail democracy but rather reinforce it.** These intolerant white Repugnantans are more than partisan; they are authoritarian and don’t care if democracy is destroyed in the process of enacting authoritarian rule.
*Like Dump proclaiming that there were good people on both sides of a Nazi march. You know, the good Nazis.
** If you’re thinking of the liberal student protestors wanting to prevent Nazis from speaking at their university, remember that the 1st Amendment does not allow any or all speech, e.g. fighting words. Being intolerant of racist hatred, a clear violation of free speech law, is not in any way the same as inciting racist hatred.