Less traffic
A real optimist here, folks!
People will lie about getting jabbed. It will be impossible to keep your progeny from getting infected with those genes.
The Israeli Jews have nearly gotten rid of Tay-Sachs disease by genetically testing couple before marriage.
The Saudis do testing too because they are so inbred.
If the problem becomes widely known enough that people lie then we can start doing testing on couples too.
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