Wikipedia defines common sense as “knowledge, judgement, and taste which is more or less universal and which is held more or less without reflection or argument”
Try to avoid using this topic to express niche or unpopular opinions (they’re a dime a dozen) but instead consider provable intuitive facts.
In all of my ecology classes they were super specific about re-framing that concept as “survival of the fit enough”
You don’t actually have to be the best example of something to have your traits carried along, just good enough to consistently make it to reproductive age and then procreate.
It helps explain a lot of weird survival mechanisms - it doesn’t have to be the best way to do things but if it consistently works, then it’s good enough. Like the old saying “if it’s stupid, but it works, then it’s not stupid”