So how many "true progressives" will either not vote or vote for the Republican because of the "3vil Cuomo"?
Cuomo is gutter trash and won't lose a general election so there's no risk in voting green or whatever in the general.
"Clinton won't lose so it's ok to vote for a green or other third party in the general" sounds pretty similar, see what happened there.
Yeah well, unless a third party candidate suddenly had the strength to get more than 20% of the vote, Cuomo isn't losing. This is 2018 New York, after all.