I have a masters degree in engineering, have written dissertations on material deformation in aircraft components (aluminium 2024-T3) and designed basic turboprop engines as part of my qualification.
You can have 10,000,000 engineers you’re not going to accomplish anything.
As @ibn_alJad and others have commented before the components for building such machines are hyper-specialised and building an autarkic supply chain for them is impossible. Trade with kuffar states is necessary and such trade will only aid their MIC development.
