People are stupid. thats all there is too it, Look at the last 5 elections or so for proof of that.
Your grammar supports that notion.
the senate was intended to be voted on by the smart people in the house, not by the dumb people all over the country
Did you get that idea from watching a youtube video somewhere? The fact that senators used to be appointed has as much to do with logistics as anything, there were many states that previously were incapable of managing statewide elections (they had their governors appointed for the same reason).
When we elect people based on promises of what they will give me, we are all doomed. With all that in mind, yes taking the senate back from the people actually would be in our best interest.
Then why have representative government at all? Your argument could apply just as well to the house, the governorship, and any state legislature - and of course the Presidency as well - as it does to the US Senate. What is so special about the senate if you don't trust people to elect their own politicians?
... and of course that says nothing about what you believe a politician will "give" you. Do you believe that your preferred leader will reduce your taxes or something?
In the end your arguments are very very similar to those of the cult members we see around here. You are arguing for producing more power for those who hold the most power, and fascism for the people.