Why you all worried about war, who'd start it? The US? Right now we're just talking about economies and being able to have a well off society where people don'

Why you all worried about war, who'd start it? The US? Right now we're just talking about economies and being able to have a well off society where people don't struggle to make ends meet. And from that point of view, the future of the US as it continues to lose competitive advantage to other countries doesn't look as good as it used too. Are we saying the US plan in case this trend reaches extreme levels is to start a war?