The major problem—one of the major problems, for there are several—one of the many major problems with governing people is that of whom you get to do it; or rather of who manages to get people to let them do it to them. To summarize: it is a well-known fact that those people who must want to rule people are, ipso facto, those least suited to do it. To summarize the summary: anyone who is capable of getting themselves made President should on no account be allowed to do the job.
When time changes, the law also changes to suit the new rulers. Often the same people who were being accused of heinous crimes like treason according to the then laws, become the martyrs and messiahs when the laws are changed.
Democracy is when the indigent, and not the men of property, are the rulers.