This kills the purpose of WordPress

Why you have to make a change to page builder kinda editor when there are already a lot of page builders out there and its a user choice if they want to use one or another. This kills the whole purpose of WordPress which was an open-source platform where users can add their desired plugin to get desired stuff or functionality.

But with this, you are forcing unnecessary things on your users and above all its a terrible plugin which is you planning to make as default.