Marc,
The biggest mistake to make is to presume that GOP voters are like that guy or even over half the posters on this forum. The fight is not really on the internet but the internet is bleeding into mainstream conservative (i.e. Fox)... I think the Dems should be on Fox.. Line them up and go on, very hard to call you evil when you are on looking for money for sick kids.
Just ask normal questions of there viewers, give the other side, why should you be worried about healthcare insurance for your kids? The rest of the first world isn't and these guys keep on telling us we are greater... Why does US have higher poverty when we are supposed to be richer?
New One: Why would my sin or daughter risk being killed because Saudi Arabia/Israel want a proxy war with Iran?
You won't win the hardcore over but the hardcore will eventually over reach... You can only keep on calling someone a Communist for so long until someone goes, they aren't Communists, they just want everyone to have proper access to affordable healthcare...
When Democrats say that this type of Police action needs to be investigated
https://nypost.com/2018/12/10/nypd-boss-video-of-cops-snatching-baby-from-mom-is-very-disturbing/
Let the far right try and defend them
At the end of the day a vast majority of people are reasonable and caring, the way to screw that is misinformation, the hardcore you see have been so misinformed at this stage they now are refusing to accept reasoned debate with evidence.. The only way they change is when moderate GOP stand up and say you have to listen but at this moment that side has been ousted or silenced...