Well, you skipped a few misadventures, such as the year of four emperors (69 AD, hmm, right after Nero), the sale of the Empire (to Pertinax, 191 AD, because Commodus was such a monster and left no clear successor). Elagabalus, about 210 AD, a completely dissolute emperor, followed by mainly military warlords until Diocletian and division of the Empire into at least two major and two minor parts, each ruled by a different man. Then came Constantine, who stabilized the monarchy for a time. But Rome was sacked by Alaric in 410 AD and repeatedly assaulted up to and through 476 AD, which is the date Romulus Augustulus was simply deposed. To date the end of the West with that is to note that a corpse dead for 150 years was finally never going to revive, as I see it.
All true. However, my point was that the misdeeds and immorality of Nero and Caligula cannot rationally be used as direct causation for the “Fall of Rome” almost 400 years later.
It would be like saying America is doomed to fall because one of the Pilgrim Fathers was homosexual.