My point is not to "normalize" this behavior, my point is not to pretend honesty, consistency, and adherence to facts don't matter. Of course I think these things matter. I'm a Democrat. I'm in the Party the membership of which cares about these things. But it is not true that Republicans also feel this way. They don't. Part of what honesty and reality-based politics presumably means is that Democrats should be aware of this and act in a way that reflects this awareness.
Republicans rail about Democratic deceptions and frauds (you know, like climate science, macroeconomics, evolutionary biology), but this is not because they eschew dishonesty or fraud -- they do so precisely because they know Democrats care about these things as they themselves do not. For much the same reason, Republicans delight in declaring "racist" any Democratic exposure of Republican racism. Accused of deception and fraud, Democrats drop everything to demonstrate painstakingly that these accusations are unfounded. Accused of the same, Republicans just lie more.
When Democrats indulge in outraged exposures of Republican hypocrisy, be very clear: all Republicans see is that Democrats are outraged and this fills their broken poisonous hearts with joy. When Democrats are mad, Republicans feel like winners. Enraging and upsetting liberals is pretty much all that Republicans live for, apart from stealing things and bullying the vulnerable.
Once again, in saying all this I do not mean to excuse Republican lies, frauds, hypocrisies. Quite the contrary. I am insisting that the recognition, exposure, and documentation of a Republican lie, fraud, error, or hypocrisy is not an end in itself and indeed is usually politically altogether useless or even counterproductive: It must be a point of departure, it must a prompt for action and organizing and not a substitution for action and organizing.
(Part of the problem here is that the same impulse that seems to seduce so many on the "sooper-left" into preferring exhibitions of purity over compromised struggles for progress, the same attraction to feeling right over getting work done, also makes the serial exposure of hypocrisies as an end-in-itself enormously attractive to that portion of the left that likes to bring a lecture to a knife fight.)
As a rhetorical matter, I propose Democrats shift their focus from documenting the hypocrisies of hypocrites to putting a suffering face on each and every dangerous and damaging Republican policy and then provide narratives to get a winning coalition of voters to identify with each and every one of those suffering faces. Then repeat slogans supporting a liberal-multicultural alternative worldview over and over and over again until these slogans feel like commonsense to that same winning coalition.