I hear what you're saying, but the fact remains that Biden had a consistent 4-6 point lead in the head to head polls over Trump from the time he announced that he was running, even though the economy was strong. Trump didn't lose because of a pandemic-stricken economy. He lost because independent voters grew weary of his conduct.
That was also evident during the 2022 mid-term elections. Trump-endorsed candidates performed poorly in key states such as Georgia, Pennsylvania, Michigan, Wisconsin, Arizona and Nevada.