[whatshisface]

That's clearly a false analysis - the size of a commodity market is determined as much by the equilibrium cost of making the goods as it is by the demand side. The cost of banning an inexpensive but essential part of your car would be far greater than the total number of dollars changing hands every year to purchase them.

[resolutebat]

It's not false, it's just ignoring the additional dimensions. In the same way that the societal cost of banning cars would be much higher than the value of the car (because cars enable commuting, leisure, cargo transport etc), the societal value of table saws in creating furniture, houses, whatever is much higher than the retail price of the table saw.