At one time, there were forced sterilization laws in the United States, that the Supreme Court upheld as constitutional under the rational of "three generations of idiots is enough". Legislatures, after the WWII eventually undid them.

The constitution means whatever the judges say it means, and unless the judges are overridden (which does occasionally happen) they find a "penumbra" or "original intent" or whatever legalese they want to make something constitutional.