Americans should congratulate themselves. Their election system is definitely better than Ethiopia’s. In fact, it works so well that there’s unlikely to be another American civil war.The United States, a federal country with a complex and decrepit voting system, has nevertheless just held a national election despite about a quarter-million Covid-19 deaths. President Donald Trump is finding it hard to process his defeat, but the system itself worked fine despite the pandemic.Ethiopia, another federal country with one-third of America’s population but less than one-hundredth of the US Covid deat…