Um. No. The dope smokers don't give a damn about federal firearm laws. After all, they don't bother to obey drug laws, why should they obey gun laws?
Many independents are people who would rather see legal abortions instead of ever increasing welfare dependency, and who also want to preserve the right to keep and bear arms. Drugs have nothing to do with why they disagree with both major parties.
Do you need more examples? I have many many more.