“But you do favor our modern prohibition of marijuana and give as your reasons exactly those considerations. Hmmmm ...”
Apples to oranges. If you’re a home brewer, you realize how completely unenforceable prohibition was. Virtually any popular liquor, beer, or wine can be brewed in your kitchen with nothing more than than groceries and simple equipment.
It boils down to cost versus benefits. I see costs accruing to me but no benefits. So why should I agree to something like that?
You apparently want marijuana legalized. That’s fine. Come to your opposition with a reasonable deal in mind and you might well get it. Come to your opposition looking for a free lunch and you’ll most likely get told to forget it.
I see no evidence that marijuana prohibition is enforceable - and home growing is part of the reason it isn't.
I see costs accruing to me
I've pointed out the flaws in the arguments for the existence of such cost increases. (Not that I expect to change your mind, but so you don't mislead anyone else.)