Drug use as well as marriage, the gay thing, and a million other issues are STATES issues, not federal government issues.
Defending the nation from deadly chemical attack is definitely within the rightful mandate of the federal government. Likewise defending it against biological attack.
Drug use and drug laws are up to the people of each state to decide what they in their locality want to do. That is what we (used) to call federalism - decentralized government as defined by the 9th and 10th Amendments - our blessed and free Constitutional Republic that we are letting Satan and his minions snatch away from us.
Nonsense. The Federal government is necessary to deal with foreign threats. You may not be aware of this, but much of the drug traffic comes from FOREIGN COUNTRIES.
How is a state going to deal with Columbia or Afghanistan?
And much does not; that part is none of the feds' business.
You’re confusing unconstitutional federal drug laws against private citizens with constitutionally mandated defense of our country from threats and attacks from foreign countries.