Polling shows a dead heat, fundamentals favor Biden. Overall, Tilt Biden at least.
Polling shows a dead heat NATIONALLY. Swing state polling continue to be very clearly in Trumps favour.
All the main issues that people care about except for abortion, favours Trump (immigration/border, inflation, wokeness) and Trump isn't even that terrible on abortion, so not necessarily the slam dunk winning issue that democrats think it is.
People who aren't already anti-Trump DO NOT CARE about his behavior or his criminal cases.
In 2020 when Trump was in office and Biden was running as a "generic D", Biden JUST squeeked out a win by appealing to a very broad anti-Trump coalition. It's gonna be a LOT harder to energize voters against Trump this time and Biden is far more unpopular than he was last time.
Conclusion: Trump is the favourite.
Swing state polling does not exclusively favor Trump, even though latter polls are more discussed here and by the media.
"People who are already anti-Trump" are a majority of this country, Trump has never polled in favorable territory. While some may not be thrilled about Biden or the possibility of a rematch, in the end a lot of them will realize he's the only option to prevent Trump from winning. Meanwhile, Trump hasn't done much to expand his coalition.
It's also not true all discussed issues besides abortion favor Biden. Not even border security, as the GOP sunk a bipartisan bill to secure the border. It's easy for Biden to use this against his opponent.
And lastly, polling is just a snapshot in time, even the high quality polls. We're 6 months away from the election and incumbents typically surge/do better towards the end. No recent prez has been defeated for reelection with the economic data of the moment.
Does Biden have it in the bag? Of course not. But stop dooming.