Is a Constitutional Amedment valid just because it wins the popular majority vote?

[PIX-ED]

For example:
What if a state's citizens voted in an amendment that forbid any state residents from owning guns.

What if a state's citizens voted in an amendment that forbid people of one race marrying people from another race?

 

[BILLY THE GOOT]

its valid if whoever is in power says it is

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