Remove the LDS Quality Loop by Replacing Solid Plastic with Liquid Plastic

TL;DR: The Legendary LDS loop is currently a much stronger quality exploit than space casinos, yet remains untouched. Replacing solid plastic in the Foundry LDS recipe with liquid plastic would eliminate the loop while ...

I’d like to propose a feature idea for Factorio 2.1 that could add a compelling late-game objective: an optional economy system inspired by other factory builder games like Foundry.

Overview

The idea is to introduce a systemic “economy layer” that sits on top of the existing factory gameplay ...

I appreciate you can achieve the same result with the editor or mods.
I would like to request an in-game vanilla feature for it

I agree it would be nice to clear up remnants somehow!

TL;DR
Add a technology unlock that allows you to glass (clear all player owned entities) on a planet's surface

What?
This could either be a tool which "destroyed" all player entities, but leave the underlying geography undisturbed.
Or it could act like a new landing site on the planet, essentially ...