I think people dislike moderates because they can be more realistic. Cars are one of the biggest contributors to GHG in the US. Most people literally need to drive cars due to how our transportation infrastructure is built. It will upwards of a decade to undo because it will require a lot of large construction projects. Those take time.

Change requires support of the electorate or the current officials will get replaced. This is why people like Koch and Murdoch invest so heavily in propaganda.

Militarily, the only real threat to the US by a foreign invasion is nukes. Our naval and air power is on a whole other level. China has way too much control of manufacturing, so going after the other problem child results in a global economic catastrophe.

The BEST thing anyone can do is winning hearts and minds of US citizens to get them on board with what needs to be done. More moderate action is an easier sell. Once hedonic adaptation kicks in and people adjust to the new normal, we can move further. We are really close to being there. Look at my post history and read the nature article.