I mean no disrespect, but if you're seeing a deep parallel between the Roman Empire's final days and what's going on in the US today, I would say you need to study Roman history more. It was in deep chaos that most people in the world today can't even imagine.
The Empire was relentlessly invaded by tribes like the Visigoths and the Vandals, and they even sacked Rome multiple times in the 400s CE. There was a huge amount of political corruption, and no, I don't mean anything like what's going on in the US. Military leaders and royal guards fought each other for power, leading to frequent civil wars and leaders who didn't last long. No one wanted to join the military and so it had to hire foreign mercenaries who didn't really have any loyalty. The Roman Empire eventually split right in half because a single ruler could not project power over the entire territory. The Western Roman Empire spoke an entirely different language from the Eastern Roman Empire (Latin vs Greek)!
I'm sorry, but I keep hearing these comparisons from people who seem to have a very shallow understanding of history and are looking for patterns because they read online that the US is crumbling. Maybe, maybe not, but it is not the same thing or even similar. The differences are far more than the similarities.