Unless the automatic yes voters can be reached.

That's going to be the key in this battle. There are unfortunately a large number of Delta pilots who don't attend road shows, who certainly don't read this forum and who are barely aware that we have a new contract, let alone know what's in it.
They have busy lives and don't want to be bothered. Union politics bores them.
They figure they pay a lot of dues to ALPA to worry about all that stuff and they will do whatever ALPA recommends.

Those are the guys who have to be reached.