I don't agree with the this in the short- , intermediate- , or long-term.
Immediately, many talented people on here are telling us they'll be less engaged with their neighbors and society. I don't think it's debatable that perception of the nation has declined internationally.
Talented scientists were already less likely to come to the US after 2016. Now with RFK leading the Public Health Service into the ground, funding for US science will be much less certain.
Longer term, @PenelopeWitherspoon mentioned that the US$ as the reserve currency was on shakier footing based on Trump's election. China would be just as fine with the renminbi as a reserve currency. In a multi-polar world, interest rates rise and standard of living falls.
Trump is a fuckup, no doubt. But his staff aren't all idiots, and a lot of them are malicious.
Elections are already less free and fair: gerrymandering, ID requirements, removal of voting drop boxes and polling locations. The ability to spread disinformation and general social media control are another angel.
You gotta short your work here.
The data around this incomplete at best. If you subtract giving to churches, dems are thought to give more.