Slippery slope actually works though.

Makes no sense to treat it like some unwelcome argument

Slippery Slope is the assertion that A therefore B therefore C therefore D.

It is frequently a fallacy because D isn't predetermined by A when humans are involved. If you believe in free will, each of B, C, D are independent decisions. Sometimes we stop at A. Sometimes we pass Prohibition as a Constitutional Amendment, and later roll it back.