Some people wait a lifetime for a moment like this. Kelly Clarkson’s daytime talk show tied with Ellen DeGeneres’ long-running series in the year-end TV ratings battle. According to reports, The Ellen DeGeneres Show has lost advertisers, A-listers and audiences after former staffers came forward in July with stories of a toxic workplace. Meanwhile, The Kelly Clarkson Show, which was recently renewed through 2023, has become a household staple in its sophomore season, gaining viewers in daytime’s key demographic of women and ending 2020 on a new season high. “Ellen is putting on a good front, but deep down, she feels threatened by Kelly’s success,” an insider tells Life & Style. “Ellen’s done everything that she can to try to prove that she’s changed, but she still can’t win back her…