Frankly, I don't believe it's "fair" for somebody to be exposing everyone around them to such financial risk. IMHO if you purchase a 2m vehicle and drive it around on public roads, you need the insurance to close the gap between avg/state mandated coverage and what your losses might be. The laws should prob reflect that and limit the average consumers liability.
Generally true of mass produced cars, very often not true of small production run, high-priced supercars, which often do the opposite.
Including Veyron:
https://www.hotcars.com/bugatti-veyron-has-actually-increase...
But, even @ $300K instead of $2-3 Million, that’s still a huge multiple of the mandatory liability coverage in most jurisdictions, so carrying only the mandatory minimum wouldn’t do much for you if you cause one to be totalled.
https://www.bugatti.com/media/news/2019/bugatti-classic-cars...
Trying to apply the same logic to a rare car of which there were under 500 units produced and even less now (https://www.youtube.com/watch?v=4NJmB1F2mdE) as you do to your economy car is just wrong.
The amount of mandatory liability coverage in most jurisdictions will be a rounding error to totalling a Veyron. E.g., in California the mandatory property damage coverage is $5,000, while the value of the Veyron is about $2 million. So, with mandatory liability coverage your still out of pocket, well, essentially $2 million.