Shoes that won't kill your back?

...

Nike and Red Wing if you have narrow feet and high arches.

New Balance if you habe wide and flat feet.

Anything Geriatric. When people make fun of them, just say that you suffer from homosexuality and they're for your crippling asshole pains. Fucking pussy.

Anything if your feet are not shit.

(don't blame the shoes, go to a doctor specialist in that area and get insoles)

I consistently strech my toes, calves, and inner thighs, but I was born with over pronated flat feet and knocked knees. Am I toast when it comes to Veeky Forums? Any shoes for me I know orthotic inserts are only a bandaid of sorts

Does Nike have anything that doesn't look so overdesigned and ugly?

Really, just this. Essentially, quality bespoke shoes will fit you extremely well, and won't kill your back, and shoes in the mid/low range designed for those with as a concern (think Clarks sans desert boots) will be pleasant on the back and feet.

For everything else, you're better off just getting insoles and jury rigging it.

What if I have very wide feet with normal arches?

I bought a pair of all-black flyknit racers. Fairly narrow, decent arch support, very comfy. They also look very minimal. I'm usually an adidas fanboy but I'm very happy with these.

No pic. Just google them.

You have this backwards. Too-small shoes (width or length) can wreck your feet, and insoles are just a band-aid.
Basically OP, just wear shoes that fit you properly. If you have a problem with excessive supination/probation (a little can be normal and even healthy), then you should consider orthopedic inserts alongside properly fitted shoes.