project 2025 has a huge crowd ready to step in. the cruelty doesn't need to stop just because the orangefuhrer isn't around. the fourth Reich is developing quite successfully.
It has more to do with OP who said "45 more months of this nonsense". Even if the current guy dies or is unable to run, there are plenty of other folks willing to carry on down the same path in his stead. 45 months might be optimistic.
Given that Trump has already been heavily meme'd as the Emperor of Mankind from WH40k, who's to say he doesn't get the same ultimate treatment? ~
On a more serious note, suppose the next president is JD Vance instead; do you think things would be any better? I suspect they would rather get worse when someone with similar beliefs but more intellectual capacity to implement them is in charge.