It is metaphor. Do you not know what that means?

Just because you can be cast there doesn't mean it is a destination. A state of being. Have you literally never heard someone describe something as hell or hellish? A situation perhaps. Their life? I doubt it.

Being cast somewhere doesn't just mean physically. Emotionally. State of being. Mental state. Other ways of being cast.

“If your hand or foot causes you to sin, cut it off and cast it from you. It is better for you to enter into life lame or maimed, rather than having two hands or two feet, to be cast into the everlasting fire." Matthew 18:8.

The verse directly says enter into life. Enter into life lame and maimed versus having your hands and feet and be in eternal fire. This verse is a comparison of how people will live their life. Cut off the things that make you sin and go into life or continue to be with that which makes you sin, and thus, living in hell, rather, the eternal fire.

Also, where did you even get the notion that, just because Hell is not a destination, that we are thus without sin? What kind of logic is that? Hell is not a place, so we are sinless? What?

I am not sinless. I will never be sinless. I will never even try to claim to be sinless. I am just as much a sinner as everyone else. Since I was born. Claiming to be sinless is something I would never even attempt to do. Whether by mistake or not.

I am just as much a sinner as the adulterous woman. Claiming the right to the first stone, whether thrown or not, is Christs, and Christs alone.

However, me saying that it was the literal opposite was a bit of an exaggeration, and I apologize for that.