They are not able to maintain all their fronts, especially with Ukraine and Israel, it requires a lot of military, financial, intelligence and political resources to maintain.
And it's a double-edged sword, the more they try to maintain it, the more things get worse on the domestic front.
Also, AFRICOM is still not fully established and the Axis of Resistance is making moves now before it gets fully established. It's the weakest dimension of the empire.