[mirror_neuron]

I disagree that this is a slippery slope. The line should be drawn by the people living in the society that draws it. As that society (and the cultural, technological, and environmental context around it) changes, the position of that line might change as well.

Many in the USA would choose a world with more expensive junk food and socialized healthcare than the reverse.

(I'm assuming your questions are rhetorical. Each of them has their own set of trade-offs.)