Pistolero, I get your drift. I believe that we have come upon one of the many dangers associated with applying rational thinking to song lyrics.
This song, like many others, can and will be seen in a variety of context based on personal history and understanding.
Case in point: The song Illegal Smile, by John Prine, was first performed on television. The name of the show escapes me, but there was a marijuana plant in the background while John was performing his new song.
The chorus is: "But fortunately, I have the key, to escape reality and you can see me tonight with an illegal smile. It don't cost very much, but it last a long while. Won't you please tell the man, I didn't kill anyone, I'll just trying to have me some fun."
When ask if the song was pro-drugs, he explained that it was a funny song about a guy with mental issues. He said he understood how people could think it was about drugs seeing the plant in the background, but that definitely was not the case.
I play and sing this song for it's comic value. Still, I have a hard time thinking the song isn't pro marijuana without considering that JP wrote lots of odd lyrics about mental diseases without making those diseases the central topic.
Music is what it is. Wanna really screw yer head up, try cyphering the lyrics to Mr. Tambourine Man.