A used x1 carbon is a better deal, faster, and weighs about the same with a bigger screen.
The whole point is people want to pay extra for superior portability. There is no x1 carbon with this weight and form factor.
My x1 carbon gave me nothing but trouble from the beginning. I couldn't even move it too fast lest I risked it locking up. Additionally, my wrist strain got considerably better after ditching it for a comparably priced M2 that blows it out of the water in every conceivable category.
"Bigger screen" (i.e. being bigger on the length/width dimension) is a bad thing in this discussion. Some people want a programming/writing laptop that fits in a handbag, so that they don't have to decide to bring it, but can just leave it in their bag the way many people do with an iPad.