How to write a program for polygonal 3D modeling?

Question

Python

Hello! I know python and a bit of C-sharp for unity (so I ask for implementation in these or very similar languages). Like many other developers, I want my game to have my 3d models, but most editors (even the same blender) are too complicated. I thought it would be great if there was a simpler editor for polygon 3d modeling: add polygon, remove polygon, move polygon, move camera, textures, render - the main functions of the workspace, some of which are tied to hotkeys. But here's the problem... And how to actually write a program for polygonal 3D modeling?
I did not find answers on the Internet.

Answer 1

If the blender is complex, then how is the unit?