I agree with the whole sentiment.
It's like if both Biden and Trump are still on the ballots.
Yet recently the referendum seems to be turning into one on Trump. He is dominating the news cycle in a bad way as Biden is seeing his fortunes change. And to make matters worse Republicans running all across the country do not seem to care about appealing to those beyond the Trump hive-mind.
I'm not saying that this is permanent, but for now it's part of a very obvious changing dynamic with these midterms this year that are defying historical patterns.