Originally Posted by Anon La Ply
There's a few obvious fault lines where laws are based on tradition and are now doing more harm than good - prohibition, gay marriage and dying with dignity. We've made progress before - abolishing slavery, women's rights, multi-racial acceptance...
That's a whole lot of classic sticky slope arguments: "Because we outlawed this, that and the other, and because we made legal this, that and the other, then of course we need to make legal/illegal this here list of things." All those things cut both ways and several ways.
My strawman dragged a red herring across your slippery slope!