people generally only care about their personal experiences. doesn't matter if you're right if it's not something they personally experience. my approach for years has been to just say my piece, and leave it at that. when they run into the exact pain points that I mentioned early on, that's usually the only time they're willing to listen (though some still won't).
of course if the stakes are higher, I may have to push a little.
of course if the stakes are higher, I may have to push a little.