Well look here, Kamikaze is back to being KylieFan. What happened to 89?
I think in the post-Trump era, the democrat party will not have a singular point to rally against, and generate voter turnout against. In other words, there's no way the democrats can legitimately turn out the number of voters in 2024 that they turned out in 2020.
I suspect that Biden won't be the democrat candidate in 2024 (although that old geezer may surprise us!) and along with him would go a certain amount of hard-wired working class voters. Without Biden, the overly progressive Harris may be the party's choice.
If so, in addition to your very good advice for the republican party, I suggest the democrat party attempt to reconnect with its roots as the party of the working class. There's nothing wrong and a lot right with being the advocate party for social justice issues, but from a purely marketing standpoint they can't be so 'pro' for those issues that the average religious working class voter feels isolated from the party's core values. That may appeal to the wealthy coastal urban liberal elites, but not so much so to their lunch pail core in flyover country. If they don't get in touch with their working class roots, they're very possibly, imo, in for another situation in which a populist, pro-working class candidate from the republican side will significantly and possibly permanently (at least as permanent as things can be in politics) take those voters away from the democrats.
And that doesn't necessarily mean not 'not doubling-tripling-quadrupling-quintupling down' "on the whole Trump business." The only thing wrong with the whole Trump business was Trump's personality. If the republicans can hit the political jackpot and find a candidate who can express Trump's views better than Trump did (and how hard should that be, really?) or a candidate with those same views but somewhat moderated to smooth out the rough edges, the democrats could find themselves in another 2016-type situation.