OK, life expectancy in the US heavily influenced by the number of gun deaths? This is the kind of statement that kind of sounds reasonable on the face of it. But take a look at this graph:
Now, maybe I’m reading that graph wrong, but it looks to me like you could double or triple that “high rate of gun deaths” and still have only a marginal effect on average life expectancy. 10,000 people a year (or 29,000, if you want to include suicides) is a lot, far too many, and if you had sane gun control laws you might be able to get that down a bit too, but in a nation of 308,000,000 people it’s barely going to move the needle on average life expectancy.
Similarly, your story about “some countries” not reporting a live birth if the baby is born alive but below a certain size. Which countries are those, exactly? Who are these careless statisticians, recklessly ignoring differences in tabulation? Or perhaps deliberately skewing the results in order to make the United States look bad? Hmm, let’s see what those raging left-wing radicals over at the CIA have to say on the subject:
https://www.cia.gov/library/publications/the-world-factbook/rankorder/2091rank.html?countryName=United%20States&countryCode=us®ionCode=na&rank=180#us
This story about “some countries” not measuring infant mortality properly in exactly the kind of thing that people go for when they are looking for confirmation of their existing beliefs, not facts. But there’s a reason “talking points” is a pejorative term. They’re things that sound like evidence but only if you don’t care to investigate further. They allow you to tell yourself a story about narrow-minded idiots on “the other side” just not being willing to look at the real facts, while attending only to those facts that appear to confirm your prejudices.
I agree that people on opposite sides of an argument should actually try to engage with each other, to find out what other people are thinking, that stepping out of the echo-chamber of a like-minded community and hearing genuinely different views is valuable and important. It is narrow-minded just to ignore anyone who says something you think is misguided or foolish or wrong.
But… repeating inane talking points at the people who you think are wrong doesn’t count as “engagement”. If your echo chamber is inside your skull rather than out, you can wander into any community you like, deaf to what is being said around you, and you won’t be any less narrow-minded than you would’ve been by staying home.