Step 1: Have a computer do all the carving.

[Mastercam maquinado de un globo terraqueo en un torno cnc con herramienta viva] (Viewer #82,582)

If you want a political metaphor, I suppose we can call it “liberals chipping away at our freedom until they’ve created a world according to their vision”.

Although – let’s be honest – if that were the case, it would end up looking more like this.