You don't think this would also be passed on to consumers as well? and mostly hurt the people who cannot afford it (especially the grocery stores)
Of course it will, but not
proportionally.
Right now, in parts of California where housing prices are crazy, most of the low-wage workers commute long distances. Those folks are going to be badly hurt by these gas tax increases — likely much more so than they would be affected by increasing the price of their purchases to make up for that externality.
A commercial diesel tax would be spread across all products, including products transported
out of the state for sale elsewhere. California has three major seaports and 8 smaller seaports, and serves as a major transportation hub for the entire country. More than a quarter of all U.S. imports come through California, even though it has only an eighth of the U.S. population. Although I don't have hard numbers, I would expect, then, that more than half of all of California's sea cargo ends up going to other states by rail, truck, or air.
if that assumption is correct, then half of the gas taxes paid by the poorest Californians are being used to repair damage from road use by shippers who are hauling goods to people who aren't paying California gas taxes directly, nor paying their fair share indirectly.
The really crazy thing is that we have a Democrat running for governor who is in favor of this regressive gas tax, and a Republican running for governor who is against it because it hurts the poor. California politics seem to be utterly upside down at the moment to such a degree that I really don't know what to make of it.
Bizarre.