Yeah, I probably phrased my post overly provocatively but I wasn't trying to be funny, just logical. And thank you for a reasoned and courteous response. My thoughts were:
1) Mass shootings are horrific, and it seems insane that anyone can own an assault rifle with such low barriers, but at the same time, death from gun violence is statistically low compared to, say, auto accidents. If being in favour of stricter gun regulation to save a few tens of thousand of lives (in a country of hundreds of millions) means alienating a huge percentage of the population, then why not let that one slide. Things will be no worse than they are now.
2) Many people (certainly me) would say that abortion is a woman's right but even if abortion is illegal, back street abortions will still take place. They may be in unsanitory and dangerous conditions, and some deaths will result. But again, statistically speaking, that will only impact a small percentage of the population.
3) Climate change however, seems like it presents an existential danger that could wipe us out as a species. Our growth driven economies seem unequipped to deal with this ultimate tragedy of the commons. Statistically, it will kill 100% of us, or severely degrade our grandchildren's lives, unless we somehow get our shit together on a global scale.
To use a crappy analogy, imagine we're all locked inside a giant container with limited air. There's a blocked air vent at the top, which we can only reach of we all stand on each other's shoulders - i.e. cooperate.
In such circumstances, why continue bickering over what music we should play while we wait for suffocation? Surely it would be better to listen to the other guys music, if it got him onside, and allowed us to move away from our tribal stances and work together on some action against the common threat.