How is this more efficient? You'd still be applying all of the inefficient regulatory rules intended to mitigate a lack of competition to the smaller companies trying to sustain a competitive market, and those rules are much more deleterious for smaller entities than higher tax rates.

If you have $100M in fixed regulatory overhead for a larger company with $10B in profit, it's only equivalent to a 1% tax. The same $100M for a smaller company with $50M in profit is a 200% tax. There is no tax rate you can impose on the larger company to make up for it because the overhead destroys the smaller company regardless of what you do to the larger one.

As a counterpoint: Look at very high value goods, like jet engines and MRI machines. I went for an MRI the other day and wondered to myself (then asked an LLM) what the international MRI market looks like. They are vanishingly small number of manufacturers and are usually dominated by a few international players. How are you going to apply this tax to non-domiciled (international) companies? Also, companies like General Electric, Mitsubishi Heavy, and Seimens are enormous and incredibly diverse. This idea falls apart quickly.