Yes. There are anti-drug songs, too. Fairies Wear Boots, for one. Excellent tune.
Ozzy is a reformed ex druggie and alchoholic with a hit show and a foul mouthed family. He does possess a sort of rambling wit and is fairly plain spoken relatively speaking. The fact that Bush is cordial to him and even attempts some humour is irrelevant. We Conservatives have bigger fish to fry than whether or not Bush was too chummy with a bumbling aging rocker who has an affinity for cursing and who perhaps once glorified ambiguously evil lyrics and used intoxicants to excess. The proof of Ozzy's former lifestyle and it's detrimental effects is in the pudding.
We have nothing to gain from appearing staid. As for Sabbath and Ozzy's lyrics, they can be interpreted about anyway one wishes. Both he and Sabbath were merely riding the gravy train.