"Give your opponent the choice between two bad options"
"When your foe gives you two targets, strike for a third"
This is a lose-lose. In my opinion, the only remotely viable non-losing path into the future is to solidify around a progressive candidate who should file a declaration to run as a write-in candidate for governor and build as huge of a grassroots campaign as quickly as possible.
I'm also curious how Amy Acton was chosen as the Dem candidate and how long she and her team have been planning this move.