I'm not sure why you think that. I'm not an opponent to legalization. I'm simply pointing out what opponents of legalization believe. If you believe this is a battle of reason and logic, then you are mistaken.
Both posts were perfectly consistent as far as I can see. The point of both posts, for good or for worse, is that neither would appeal to mainstream Americans. You can attribute that to bias, or cultural snobbery, or even racism on some level. But it is there nevertheless.
One of the reasons marijuana was outlawed in the U.S. (in the western states first, btw) was because it was seen as a 'Mexican' thing.