You forgot to add, in your opinion.No one would buy an LCD when oled is available. It doesn’t take a genius to know this. The XR was doomed to fail the moment they equipped it with an lcd. Dual cameras should be a standard at that price. You can get an S9 for cheaper and it comes with dual cameras and an oled. It’s a no brainier.
It’s my speculation the Xs and max are stealing sales from the xr. Not the other way around. The xr is better than the s9 simply because it’s an iPhone. But ymmv. The xr is probably eating the s9 sales for lunch.