I never claimed otherwise lol.. It very much is the drug itself, why I tell people to avoid, as much as they can, letting the stuff just sit inside their mouths and the importance of the parachute aspect.
Its not LSD, its just acid at that point lol. Hydrochloride salts are caustic, we all know this. But so is Coca Cola, lemonade, hot sauce, Mexican candy, the difference being meth doesn't get broken down & metabolized the way food products do, it just does its one job and gets expelled.
The tooth decay stereotype is mostly the result of destitute users just not taking care of their mouths in general. The meth habit just speeds that process along, unfortunately.