It’s a question of do you want your party in the WH or the dems? And who is elected also influences the down ballot vote.
I get a new US Rep this year, as mine is retiring after just 2 terms. I have 2 choices the GOP or the dem. No other candidate came close enough to do a write in. And there is no way I’m voting for some unknown dem. David Kustoff was at least the GOP party state party head for a while, fairly conservative and effective as a party leader. He has made no statements that I know of.