Don't doubt Trump guys.
This man has damn near become a religion to many people in Middle America despite whatever ties he's broken. Plus, many Republicans are just anti-Democrats anyway and will vote for any Republican on the ballot as long as they can defeat Democrats.
Democrats can't afford to be complacent and think that Trump is shooting himself in the foot. Hell, Trump's loss in 2020 was somewhat aided by the uncertainty of the pandemic and the George Floyd protests. It's unlikely that anything of that scale of uncertainty will occur in 2024 so Democrats have to be strategic and play hard because, despite what you read about Republicans "abandoning" Trump, he still has tons of people ready to vote for him as President.