Brown vs Board of education overturned Plessy vs Fergusson. The court eventually overturned itself agreed that US citizens have the right to write pamflets arguing against a draft was not shouting fire in a crowded theater (rather than outlaw that, one would think it would be better to make them safe from fire, but that is an aside).

Point being SCOTUS can even agree with itself. It has the power of the gun, which means we may care about its position, but hardly that it is right.