Any one state is incentivized not to do this alone. It only works if everyone does it at the same time. In addition, if every state did this, states could break away to increase its influence.

That doesn't mean that this is impossible. There seem to be two ways this coordination and prisoner's dilemma problem could be resolved. First, by a constitutional amendment (unlikely) or second in a similar way to the National Popular Vote.

National Popular Vote is a bill with the goal of making the winner of the popular vote the winner of the presidency. The way it works is that states pass a law to give their electoral votes to the winner of the popular votes ONLY until enough states with enough votes pass the same bill.

This bill currently has been enacted by 15 states (195 electoral votes) [1]

[1] https://www.nationalpopularvote.com/