Why did Rome fall?

Rome fell because of four reasons; Inflation, an untrustworthy army, political instability, and germanic invasion. The cause of inflation was because there was a very drastic drop in money/coins, so that caused the government to raise taxes, and they did not have much silver and/or gold to make coins/money. Reasoning behind the untrustworthy army was because the army had given their allegiance, not to Rome but to their commanders, who fought amongst themselves for the throne. Also, because of the effect of political instability the cause was because an average citizens loyalty had as well weakened. Romans cared so deeply about their republic that they willingly sacrificed their own lives for it. Lastly, because germanic invader's who destroy Rome and they remove the emperor.