So your idea is since death penalty dont work to remove it?Yes thr slippery slope fallacy. Do this and u will repent for 5years! Many country recognize death penalty doesnt work and develop other sucessful ways to discourage drug use.
https://mobile.reuters.com/article/amp/idUSKCN1UQ197
Then there is law to prevent murder.. but still got murderers.. so.. remove the law, or remove the punishment?