There are a ton of addons that try to mimic this parametric or boolean modeling workflow. Blender’s modifiers are already non-destructive and they are arguably some of the coolest features in Blender. I think these nurbs surface/boolean/parametric modeling tools aren’t too different, in terms of philosophy from what blender already does in some areas. I think its time blender catches up especially when hardcore Blender fans, like myself, are being forced to use these other tools because Blender just can’t compete with the speed they offer. A few popular ones are Fusion 360, Moi3D, Modo, and surprisingly even Houdini. The 3D industry is changing and more and more programs are popping up that use this kind of super-fast modeling workflow. What can take me a week to do properly in Blender I can do in Fusion in an hour, still have control over things like bevels I made at the start of the project an hour later, and don’t have to worry about topology getting in the way or slowing me down. I work in the game industry and I recently had to start using Fusion 360 because of its boolean tools and non-destructive workflow. I know Blender isn’t a CAD program so it might not be fair to criticize it for not being something it wasn’t meant to be but I think it might be valuable for the devs to start looking into a non-destructive parametric workflow for Blender.