Many issues at play:
- In the same way that a lot of people with powerful friends in the city depend on new highway projects, new community centers, new programs being set up, so that their friends can get paid, people in the US government with powerful friends depend on new wars so that everyone can sell weapons and continue to have good quarters.
- The US military benefits enormously from getting a ton of practice. We're trying to run an empire, and very often big militaries get lazy because their countries do so well that they don't really have to be scrappy, and people get complacent. War is so shocking and challenging that the only way to really stay good at it is to be doing it. And so, that's exactly what the US does.
- The US has its fingers in so many pies so to speak that all kinds of shit that happens globally we determine to be our business. Civil war in Syria? Holy shit, better make sure the right people win. Let's go fuck up some irregular forces that don't have helicopters or satellite support.
None of the neoliberals wanted to "use overt fascism" as a threat of anything. They just want to sit back and get paid, and don't really care, most of their campaign materials (according to the super-experts in this comments section at least) are trying to imitate the fascists. None of their campaign materials or public statements even seemed to recognize that fascism was something at all dangerous in any way.
The thing of "oh isn't it convenient that I have to vote for the non fascist if I don't want fascism, well fuck you I think you're trying to trick me" is a super popular and very effective propaganda thing designed to trick people into letting the fascists come to power, though. The overall pitch is to make it sound like "it is urgent not to let fascists come to power" is some kind of clever ruse, and can be discounted.