It's fair to compare the mistrust, but not to equate it. I think the mistrust the left feels for GOP elected officials is far more warranted. Most of them continue to lie about election fraud, they all orbit around a guy who abused power to an absolutely unheard of and insane degree - who incited an attack on our Capital, because he couldn't handle being elected out, and they've been absolute shitheels for years. It's more than systemic, repeated coincidence that's installed a vast majority of Federalist federal judges - it's been mostly the breaking of norms that kept a certain degree of public trust in that power. McConnell took everything that wasn't nailed down, and the only reason it wasn't nailed down is because the people who came before him never imagined certain things would even need to be nailed down, that an elected official would be shameless enough to abuse the fact that they weren't nailed down.
I haven't stated the support to these claims because it would take a super long time to lay out, and anyone who doesn't already see they're true wouldn't consider the support anyway, no matter how strong that support is. That being said, what exactly have Democrats done to deserve the mistrust? Like, not in Facebook Fantasy Land (where misinformation got passed around at light speed) - but what kind of *actual* support can be found to argue that Democrat officials deserve anywhere near that same caliber of mistrust?
I get the feeling that you're partly alluding to a mistrust on the individual citizen level - citizens not trusting each other - but I think the biggest problem is that individuals are starting to see (and dehumanize) "the other" as a big hive mind without variations. Individual citizens don't trust the "other" hivemind. For example, I wanted to drive north and visit a lavender labyrinth maybe 2/3 the way up Michigan - but I decided not to because they seem to be really fucking crazy up there right now. I hear isolated stories, and don't want to take a chance on being the next isolated story. (Like the videos of people ripping facemasks off of strangers, because they're *so angry* about anyone wearing masks). But I know full well they aren't a hivemind, and that *most* of them won't rip my facemask off. When I say things like "for people who otherwise seem to thrive on vice-signaling, too many reach for their own pearls with Emmy-winning soap opera queen fervor" and imply the hivemind is hypocritical, it's clumsy language on my part and I know full well it doesn't apply to many of them. My biggest complaint about the individuals is that they don't seem capable of engaging in actual dialogue to articulate or explain the reason they are so worked up, but I'll acknowledge that's a big problem on the left too (it isn't as frustrating to me because I already understand the left, and therefore don't crave people of articulating cogent explanations for what I already understand). My distrust is far, far more about the puppeteers pulling their strings, making them chant "You're sheeple believing everything MSM says" and "I did my own research" practically in unison. And I suspect it's largely the same for them, although I'd be very surprised - as I said - if anyone could come up with anywhere near as much support for a claim that the Democrat officials and media figures (Tucker Shithead Carlson) have actually done anywhere near as much to actually merit it.