The biggest danger to the Electoral College is the ongoing National Popular Vote
The National Popular Vote bill would guarantee the Presidency to the candidate who receives the most popular votes nationwide (i.e., all 50 states and the District of Columbia). It has been enacted into law in 11 states with 165 electoral votes, and will take effect when enacted by states with 105 more electoral votes. The bill has passed one chamber in 12 additional states with 96 electoral votes. Most recently, the bill was passed by a bipartisan 4016 vote in the Republican-controlled Arizona House, 2818 in Republican-controlled Oklahoma Senate, 574 in Republican-controlled New York Senate, and 3721 in Democratic-controlled Oregon House.
I have heard of this bill but don’t believe this was a amendment to the Constitution?