system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The legality of marijuana in US states.

From my understanding, it is illegal on a federal level, but on a state level, it is legal. What's stopping the federal government from sending forces to arrest people in Colorado and other states where it is legal?
gpt
The federal constitution clearly states that states cannot override federal law. States can be more restrictive, but cannot allow something the federal government says is illegal.

The decriminalization of marijuana by the states is illegal. The federal government has marched their forces in to arrest and shut down operations, but so far on a very small scale.

Public opinion is clearly in favor of decriminalization and limiting resources spent on the "war on drugs". States are slowly telling the federal government to fuck off, illegally decriminalizing, and not wasting resources on john doe pot smoker. It's a protest. The federal government lacks the resources to enforce the law no one but the lobbyists want.

Yep. Our federal government is so fucked that nearly equally fucked state governments are protesting.