A serious reduction in our energy consumption is probably unavoidably gonna result in a serious reduction in human population

No it literally isn't.

Most energy consumed in the world goes toward global commodity production for profit. It is not consumed in a rational way to maintain human life.

Energy consumption can drop dramatically while maintaining high standards of living for the masses.

your actual answer is just completely reversing human technological development

Which technological development is that by the way? "you know, the thing"

1st world labor aristocrats oppose degrowth because they know in their heart who benefits from imperialism