I feel like you've started this thread to kick off a pile-on but I'll bite.
My SUV is large, and a diesel. I bought it (secondhand) because we needed something comfortable and spacious for extremely long journeys Edinburgh to London, etc that would have enough go and refinement for long motorway drives and also be economical on those long journeys. IMO it is also nice looking and well-equipped.
The dealer had better incentives on the SUV than they did on the equivalent estate car that day, so that's what I bought. When I bought it a few years ago, electric car options weren't as numerous and varied as they are now. A Leaf didn't have the range or the space for what I wanted at the time.
I'm actually open-minded about changing to an electric car now. I would quite like one of those Hyundai Ioniq 5 things that have just come out -- very 80s cool.
But at the moment there's virtually no charging infrastructure around me. The street I live on is protected and the council is dragging its heels about installing street chargers. This is happening city-wide. And I live in a flat in the middle of the city so it's on-street parking only, so no trailing cables out of the window or door. Charging it would just be a great big nuisance.
Also, changing the car for an electric is money that I don't have at the moment. For the kind of car we need I'd struggle to spend less than fifty grand and I don't have fifty grand, either upfront or in the monthlies. I own my current car outright so it costs me nothing besides tax, fuel and maintenance.
I also feel, rightly or wrongly, that I have it now so I might as well keep it until it breaks completely. Repair, reuse, extend the life, etc.
I'm careful about how I use it. Most journeys are city centre, and we walk. Or I bike it. The car gets used for long-distance trips only -- which makes sense because this is where it is most economical.
Swapping it for a new car, even an electric one, feels like just more consumerism to me. I don't need new stuff, there's nothing wrong with my current car. It's reliable and economical. I run it on the cleanest diesel I can get, keep it maintained so that the emissions are well within tolerances. It is EU5 compliant, so I can drive it in central London without paying the ULEZ charge, and (hopefully) in Edinburgh with the forthcoming CAZ which will follow the same rules. So my council, and the council where I lived previously, thought it was green enough. So to my mind, it is.
Would I choose something different if I were buying now? Yes, probably. The era of the big diesel is rapidly disappearing, which is fine. It wasn't when I bought my current car, which is also fine. Things change.
But likewise I don't want to throw away a perfectly good item just because it might not be seen as the greenest thing any more. I will replace it on my timescale.