I completely understand your frustration. However, at some point you will need to accept that beating your head against a brick wall is a complete waste of your time and energy...and, should you want to remain friendly with her (or, in my case...friendly with family members), you will have to agree to disagree and change the subject. It’s what I had to do when my sister, who supports single-payer and Obama, told me it’s time for a “change” to socialism because capitalism got us into this mess and, she added, communism isn’t a bad thing either, it just needs to be done right.
It’s just not worth the effort.
You are correct, while I still have my sanity and we are still on speaking terms I think I’ll just let it go. We can talk about the weather :) that would be nice. Except she will then bring up global warming...lol I don’t know why my sister-in-law isn’t completely insane.