you don’t see diabetics recommending everyone constantly monitor their blood glucose and take insulin

To be fair, being aware of your glucose level isn’t a bad thing. Insulin is probably not an “everyone” thing but if monitoring blood glucose wasn’t so cumbersome, I would suggest it to anyone. It has similar value to monitoring weight, blood pressure or temperature.

Any legalization will lead to the profitization of marijuana. Even if home growing is legal, that will first be marketed as a problem in comparison to good old fashioned, chemical laced, corporate weed. Then either lobbied away. The cynic has himself wrong, he is just observant.