Thank you all, excellent suggestions. I like what Em Zee said, "You can fix it, if you and your players want to fix it."
I have talked to them individually, and the paladin seems open to change, but the other player actually said, "It isn't fun for me unless I am playing the most powerful option." Absolute zero interest in 'fixing' anything.
I am going to try it one more night, tonight, buffing up the creatures they face. If that doesn't work, I am going to throw in the towel. It isn't worth it for them to just auto-win everything. I mean, it's a 'game' not just weak storytelling.
Thanks for your continued input!