First - it suggests that the electoral college represents the "will of the people". It doesn't. I would suggest the popular vote represents the will of the people.
Second - Even assuming the 2016 election indicates that the will of the people is to have Trump be president, impeachment is part of the Constitution. It's there for a reason - to get rid of a President guilty of high crimes and misdemeanors. We cannot toss out the Constitution simply to prop up a three-year old "mandate" that Trump be president. The election does not override the Constitution.