Is the conversion of a non-Muslim to Islam valid if he does not intend to abstain from alcohol?

Whoever desires Islam should be encouraged and urged to embrace it before dying in disbelief, for the destiny of the monotheist is Paradise, and the destiny of the disbeliever is Hellfire. If one embraces Islam, they are taught what is lawful and unlawful, and the prohibition of alcohol. One who drinks it does not become a disbeliever, as long as they do not deem it lawful.