Yes .
But it would be truly clumsy to run a nation of 330,000,000 as a pure democracy, so we elect representatives in a rather complicated process.
I like the idea of simplification, what exactly needs to be different?
I remember the gripes that Republicans used to have with the Gerrymandering that the Democrats used to do here in Georgia.
In theory , the Democrats were getting as much as a 10% advantage by exploiting the 10% error they were allowed .
But some Republicans were quite sanguine about this, the trends at the time were for Republican growth and Democrat shrinkage, and the heads of the party were saying that they didn't need to change a Democrat policy of gerrymandering that was working so well for the Republicans.
Georgia became Republican in the statehouse and has had two censuses since then, they do about the same thing the Democrats had done , in theory gaining a 10%advantage.
I really doubt that 10% figure , when the Georgia Republicans finally overcame the Democrat advantage and claimed the statehouse did they do so by building votes 10% above plurality? If they did then taking the responsibility for gerrymandering should give them a 20-% better than even vote, and this I do not see happening.