Is slut shaming wrong?

A hookup before birth control and abortion... would have been deadly to a family or tribe. The girl's family would have to take care of some random guy's kid while he invested nothing. It makes sense why slutty behavior has traditionally been looked down upon, but what's the point of shaming slutty behavior nowadays since we have readily accessible birth control, abortions and even child support systems?
Is slut shaming wrong?
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