Re: Kryptonite in first film... Extent of use?
That makes no sense... by your own arguement, it's not like you could sneak up to him with it!
Yes, Superman is usually faster than a speeding bullet... but in several interpretations he has not been faster than a speeding Kryptonite Bullet... obviously the closer the bullet gets, the weaker and slower he becomes, especially if it were a machine gun round of bullets.
I don't know why you think that a kryptonite bullet would richochet off his chest... has that ever happened before? I was always under the impression that his skin could be penetrated by kryptonite, and therefore a kryptonite bullet would cut through him just like it would us.
And I can't see him dodging it, and then running up to the machine gun full of kryptonite bullets and getting 'in the shooter's face'... he'd be at the shooters knees if he tried to get that close to that much kryptonite.
As you say though, there are many other kryptonite weapons that could be fashioned. A net, kryptonite gas canister, kryptonite bomb, kryptonite laser etc tec ... i've even seen x-ray machines infused with kryptonite in a fanfiction (though i'm not sure how that would work).
Just accept that this is the direction they have taken.
Then, you can either decide this version isn't for you and stop watching. OR you can decide to enjoy it for what it is - an elseworlds tale.
'In Elseworlds, super-heroes are taken from their usual settings and put into strange times and places - some that have existed, and others that can't, couldn't or shouldn't exist. The result is stories that make characters who are as familiar as yesterday seem as fresh as tomorrow.'