Substitute firearm for joint, and see how that legal concept stands up. That’s no reason to give Oklahoma the final say over every other states laws.
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That legal concept stands up just fine. Texas allows for concealed carry. Yet a private place of business has the right (under law) to prohibit carrying.
And Oklahoma has the right to deny harm and damages caused in Oklahoma by the citizens of Colorado.
And Oklahoma has the right to deny harm and damages caused in Oklahoma by the citizens of Colorado.
Oklahoma has every right to keep marijuana illegal in Oklahoma. They have every right to prosecute people who cause harm in Oklahoma because of being under the influence. They do NOT have the right to make a Colorado law illegal because they don't want it in their state. Otherwise, NY can make guns illegal in SC just because they don't like them. California could raise taxes in SC because our tax rates give us an economic advantage. That is incompatible with a federation of states.