So in my country the cheapest new iPhone 12 mini you can get is around 250€ more than the cheapest new SE you can get. So to me it is a no brainer here. If you don't suffer PWM, go for the Mini. If you don't get a new phone very year or want to wait for the 13 Mini, go with the 12 Mini. You will regret buying a SE, once you have a 12 Mini in your hands, f.e. in stores etc. It is so much better. Reception/signal and bezel less display alone is worth it. Battery is better, FaceID, which is much more convenient in non Covid times in a few months, a year. Faster and more seamless. Lighter and smaller while having a bigger display.
I owned a SE2 for a very short time and used a SE OG for three day now as my main device, waiting for a 12 Mini again. Nice devices, and maybe enough for some as long as you don't have a comparison the the Mini. But you want one when you see it and have it in your hands. If you have the money and don't need to make a credit, go for the Mini. If you don't have the money cash for it, go with the SE, it is still a nice device but in almost every way way worth then the Mini.
So two things the SE has going for it. Price + in Covid times with TouchID. Maybe LCD display for people suffering from PWN. If that is worth 350$, here 250€, you should take it.