I have never heard anyone use the term DINO, Democrat in name only, despite the obvious humor involved.
Is it because it’s more difficult to hide differenting views within the Democrat party? As soon as you step out of line, you’re cancelled.
I have always had my hopes up about AOC and Fetterman.
Due to their inability to accept differentiering point of views it would be hard to change the party in the direction of Republicans.
But maybe it would be more effective to drive it further to the left, thus making it more unappealing to sensible voters.
A mole work best undetected.