In the last two elections, an Electoral College bias in favor of the democratic candidate has developed. In 2008 Obama beat McCain by 7.26%, but it would have taken 9.5% shift nationwide towards McCain for the Republican to have won a majority of the Electoral Votes. In 2012, Obama beat Romney by 3.86%, but it would have taken a 5.37% shift towards Romney for the Republican to win a majority of the Electoral Votes. Thus, in the last two elections there has been about a 2% bias in the Electoral College, such that had either election been close, Obama could have won in the Electoral College but lost the popular vote by up to 2%.
The only way to eliminate a bias in the Electoral College using the popular vote as the metric of guidance would be to determine the election result by the popular vote. Hence, if Obama beats McCain by 7.26%, then it would take a 7.26% shift nationwide towards McCain for the Republican to win the election. If Obama beat Romney by 3.86%, then it would take a 3.86% shift towards Romney for the Republican to win the election.
See how simple that is? This is what Democrats have been proposing all along.
MI isn't proposing to correct bias, but to introduce new bias, by changing the rules on a selective basis, the sole reason why MI is selected being that it is a state expected to vote Democratic. Hence the purpose to sabotage the state's influence in presidential elections to bias the system towards the GOP. The Republicans are the only reason why the biased Electoral College system is in place to begin with, and now they propose to biased their own biased system, thus stacking bias on top of bias in an absurd contortion calculated to benefit themselves. Might as well just write in the next election winner ahead of time.