I'm not sure that's the danger you think it is, or that arguing against them is a panacea.

Arguing with them or loudly pointing at them makes a spectacle, bringing people to the issue on both sides. Just an argument isn't super likely to bring people around if they've already made up their minds, but it will certainly organize the opposition.

In the mean time, unless you're actually able to sway the thing you're arguing over, there's now just a big visible and time consuming turf war going on over things that nobody in the discussion has any ability to change, because they all pertain to the opinions of others.

Compare this with disengaging. Suddenly the loud opinion has nothing to reverberate off of. It's alone, yelling into a void that doesn't care. It's not even a blip.

The right knows this, which is why they DARVO. We need to learn this, but to use it honestly instead of using it to become better manipulators. Disengaging doesn't just prevent the triggering of massive opposition organization, it saves energy for where it can actually be useful. Then you can just go do the thing without making a spectacle of people with shitty opinions who otherwise wouldn't even matter to the progress being made.

Stop giving them something to fight about day in and day out and they'll get bored and go back to looking at big trucks instead of paying attention to politics.