How do I feel about these Georgia Senator candidates refusing to acknowledge Biden's win?
I think it's stupid. Joe Biden won. Anyone who can't or won't acknowledge that is simply denying reality. On January 20 he is going to be sworn as POTUS. That's going to happen, short of him dying ahead of time, or short of some sort of apocalypse.
I don't know what these people privately think, or acknowledge, when they are sitting alone in the dark. Maybe they know Biden won, but think there is some sort of political advantage to be gained by playing this card. Maybe they haven't realized Biden won, which means they are crazy. I have no idea. I tend to think they are playing some sort of political game. I don't have any idea as to how this could advantage them, but maybe. I don't claim to be an expert in politics.
Seems to me that if I were them, I'd be reminding the Georgia voters every single day that Joe Biden won (rather than denying it), and telling them that their election of me is the only thing standing in the way of the Democrats controlling both Congress and the White House. But again, no one is standing in line to hire me as a political strategist.