It’s hard to do, but probably necessary to make new gains in politics. I’ve started to try to do this with more conservative friends and family. It’s really hard to set aside my values and make an argument that appeals to them when I’d rather just scream “BECAUSE IT’S THE RIGHT THING TO DO, DAMMIT.” But as a woman of some privilege, I feel like it’s important for me to use that privilege to bridge gaps and achieve actionable goals. Values and morals are very slow to change, but there is some evidence that getting people to act creates values, rather than the other way around. Basically — rather than trying to change someone’s attitude first, get someone on board with defending the ACA now and that creates a habit that will continue over time. And if you establish the habit, that may lead to a change in values.
This will probably not work with a lot of die-hards who have bought into a post factual world. But there are still moderates out there, and they can be persuaded. Trump’s margins were small in a number of key states, no matter what Trump tries to tell himself.