The constitution is convoluted on this.
This subject is ripe for the Supreme Court.
I think they would find that this idea is “UNCONSTITUTIONAL” as is the current practice of awarding electoral votes in “winner takes all” states.
In both cases “the people” are being disenfranchised of their votes.
In both cases the people are being disenfranchised of their votes..
The US Constitution never gave "the people" (individually) a right to vote for President.