Water issues will intervene in the ability to pursue that. They've done no planning or infrastructure building to avert the coming water and food shortages outlined in this report: https://www.vice.com/en_us/article/mbmkz8/us-military-could-collapse-within-20-years-due-to-climate-change-report-commissioned-by-pentagon-says
With that in mind, the US machine is just not going to be functional enough to do much abroad. They will have to turn inwards to get the house in order. Isolationism is more likely in my opinion.
Water issues will intervene in the ability to pursue that. They've done no planning or infrastructure building to avert the coming water and food shortages outlined in this report: https://www.vice.com/en_us/article/mbmkz8/us-military-could-collapse-within-20-years-due-to-climate-change-report-commissioned-by-pentagon-says
With that in mind, the US machine is just not going to be functional enough to do much abroad. They will have to turn inwards to get the house in order. Isolationism is more likely in my opinion.