There's almost no overlap between VC and anything involving sheet metal. In fact the way manufacturing events never make it out of industry press is a good sign the troubles will need to get very bad indeed before the feedback in the democratic system begins to control them.
Kind of proves the point. Private capital is more willing to invest in stupid shit that they can convince themselves will 10x than in something worthwhile that probably can't be 10x'd easily, like manufacturing.
Venture capital is a small fraction of private capital. If you stretch the definition to its limits, you could say that tech companies are a big fraction of the total stock market cap, but the majority is still accounted for by companies like P&G.
