This country was not founded as a direct democracy, was not intended to be a direct democracy, and absent a Constitutional amendment cannot be made a direct democracy. States are supposed to have a voice -- going to a direct democracy completely removes almost all of the states in favor of a few small high-population states, which leaves all the rest of the states unrepresented in the Presidential election. It's the same reason we have a Senate -- to represent the states in government, and a house -- to represent the people in government.