Yes, we all know you don't care for the Model 3 - you've made that abundantly clear.
As far as preferring the Volt, well, you're entitled to your opinion of course, but it appears that it's you and about 7 other people who share that opinion. The Volt was discontinued for lack of sales.
I thought the first version was a good compromise when it was first introduced, and was actually looking forward to the revised version. I couldn't believe it when I actually saw it in person - TERRIBLE packaging made the back seat all but unusable for carrying passengers, and it wasn't just me that noticed that.
Keep in mind if my budget limited me to just one "EV-ish" car I WOULD Choose the Model 3 over the Volt.
But since I get my "Fill" of "Tesla" with my Model X, and didn't want 2 Tesla's nor be 100% EV (incase of major power grid failure I can still get around in the Volt) the Volt was a better choice.
And likewise if you put a ICE, Transmission and gas Tank in a Model X, you'd have roughly a $50K Vehicle. There are some unique perks I like on Model X, as I did on my $50K Jeep. And I am willing to pay a premium for ONE pure EV car (namely a Tesla, and partly due to AutoPilot as it stands now and what it might do in the future). But one thing that the Jeep did do better was blind spot and rear cross path, I really wish Tesla's had that. But they do have other features I love. Like I really love Dog Mode. I love the HUGE Nav (especially in the X).
I'm agreeing with the OP. He likes everything better about the Model 3 over the Maxima except Blind Spot and Rear Cross Path. But I bet the Maxima was a lot quieter. Noise is a hude deal for me. It's not so critical with others. But I somethings think some folks are blinded by some of the other cool factors of Tesla's. And there are some very nice cool factors.
It's really hard to complain about the ride on the Model 3, because it's meant to be an agile sporty sedan. But the noisy cabin is inexcusable (for me). It's acceptable for others. And I'm sure it varies on where you live because road quality makes a huge difference.
Also Tesla's could hande Cold Environments better. Frozen Door Handles and Windows are just inexcusable how bad they are on Tesla's. My X is as bad as the Model 3. I avoid taking it some days because I know we could get freezing rain and I take the Volt and leave the X in the garage. I did the same with the Model 3. Many folks don't have that choice. One other frustration is lack hatchback. Again hard to fault the Model 3. I actually never had a hatchback until Volt. And realized how convenient that makes a small sedan.
So the Model X solved two problems over the Model 3 for me. Model X is much quieter and it's more designed for a smooth ride (I can't fault the Model 3). But I do wish they had maybe a choice of software suspension. Which might transmit less road noise too. I look forward to a quiet, small, smooth riding, hatchback Tesla. I don't think the Y is it. But there is a chance it could be refined to be so in the future. Maybe. It does fix the hatch. Some folks rumor the Y might be quieter and might offer dynamic suspension.
I want to be clear I'm not saying the Model 3 is a piece of junk.