What do you think the executive branch of the USA could have done to prevent any of this instability? al-Burhan hardly seems better than al-Bashir.
2) use foreign policy maneuvers to pressure UAE to end its support for the paramilitary group
3) provide aid of our own which strengthens our position and gives us more options to end the paramilitary group's reign
4) install a new dictator. it's not a good option, but if the previous options don't work, I think the citizens of Sudan would admit it's better than genocide and starvation at this point.
Remember back in "Trump 1.0", when he stopped us from being involved in foreign affairs "because America First", and there were warnings that a lack of American presence would create a power vacuum that our enemies would fill? This is that outcome.
If we had been the ones providing aid instead of the Saudis and the UAE, this whole recent catastrophe might have been avoided. An important lesson for the current administration as they continue to end foreign aid to gain cheap political points.
And granted, I know a whole lot of people go "so what?" to genocide and starvation, but also Coke & M&Ms are now more expensive, so maybe that'll matter to them.