Incorrect. He only appropriates our salvation if we place our faith and trust in Him for salvation, believing in our heart that He died and rose again for our sins.

Sounds like a shitty person.

If you have the ability to save somebody from an eternal torture and you don't then you are a dick.

we create our own hell with sin

We were created to sin

an omnipotent being could create us with the ability to make the choice to sin or not

Sure, i can put an addict in a room full of coke and he technically has the choice not to do coke. Just not realistic, and the person putting him in the room is an asshole.

God doesn't force salvation on anyone because of free will. Also, He will only save those who are willing to place their faith in Him because how could He run heaven with people who refuse to obey Him? You must have faith to obey.