One more attempt to suppress voters in non-democratic voters in the minority and in some cases the majority. The smaller states (lower population) would be in a position where their votes don't count since California, New York Illinois and several other large states traditionally vote Demo and between they have a large percentage of the population. This is why the Constitution has the Electoral College as an integral pat of it workings.
Without this agreement and compromise the Constitution would never have been ratified. In todays environment, without such a measure the survival of theUSA as it is now would e in serious doubt.
I will assure you that if the situation ever changes to where the large populations states are controlled by the republicans, you will see the Dems campaign for a repeal of such an amendment.