Why did the makers of the constitution place filters?

The French revolution convinced many that mass voting could not take place as the common man was not educated enough to vote.

So in the Constitution, the States Legislatures chose the senators, and the electoral college elected the President.

It was also believed that too much direct majority rule could possibly hinder the rights of the minority groups, that is why filters were placed.

a caliphate is an institution governing a territory under Islamic rule