Except most state/local governments do have property taxes on houses, land, and cars. Not unrealistic to apply the same towards other assets. Specially since taxing homes and cars is counterintuitive because you’re taxing necessities, while taxing monetary/investment assets like stocks would make more sense to encourage more spending instead of just hoarding the money.
It is most likely this. OP is one of the unfortunate people that just cannot use marijuana safely due to his biology. If you have cannabinoid hyperemesis, best to stay away from weed because the constant nausea/vomiting can lead to unintentional weight loss and a lot of other physical problems that are no fun.