I think because you don't live in the states, and probably don't pay much attention to actual individual state legislative initiatives, you have zero clue as to what the radicals in the Democrat party have actually been proposing over the past few years. I'm not going to do a half-hour Google mission but if you're bored, do a search on states and municipalities enacting all sorts of anti-Christian measures (and I'm not a Christian, by the way). For one, it can now be considered inappropriate or even offensive in America to say "Merry Christmas" in a public setting, particularly in locations dominated by Democrat politics. You can be reprimanded in the workplace or classroom for doing so. The standard is now "Happy Holidays." Manger scenes are banned by many municipalities in public spaces and in shopping malls. Teachers are being fired for allowing kids to bring BIBLES to school. This is not propaganda or rhetoric. Google is your friend. And you obviously missed the shitstorm earlier this year where Democrats in VA
sponsored a bill that would allow abortions up at and until the moment of birth. (And that link is from your own, BBC). VA's Democrat governor, Ralph Northam (who was previously seen as a potential presidential nominee), then set off a shitstorm by
publicly voicing support for this bill. Nancy Pelosi defended Northam. And the best part? Northam is a pediatrician.
This was major news in America, but because it doesn't fit the leftist narrative it isn't widely reported, much like when
Senate Democrats shut down a Republican initiative this year to block late-term abortions. Chuck Schumer took the lead on this. But it wasn't much reported.
As for tax policies, it's common knowledge that Joe Biden is proposing a 67% tax on the wealthy. AOC has gone further demanding 70% on anyone in the six-figure category and above. And the usual Democrat strategy for combating criticism to this is to remind people that in the 1950s, the top tax bracket was briefly raised to 91%. Yes, that is true. And a large portion of the leftists in the Democrat party want it to happen again. Again, do a Google search. Specifically, look into "death tax" and what people like Bernie and Warren are after and how they justify it.
As for your question about how the GOP will win without Trump's demographic of illiterate shit-kicking morons? And you do, first, realize that a very significant portion of registered and lifelong Republicans (like over half of my friends at the RNC) voted for Biden this past election? You need to realize that the elections with Trump were not "standard" American elections. You need to study the demographics, the numbers, and how Trump flipped all historical trends and projections the last two times. But to answer your question...how can/will the GOP win the presidential election in 2024 without Trump's loyalists? The same way we did in 2004, and 2000, and 1988, and 1984, and 1980 and every other time since the party's founding in 1854--with the votes of loyal Republicans and center-right moderates and independents. Same as it always was.