I think both Tim Scott and Lindsay Graham are terrified to death of Trump publicly alluding to their being possibly/probably gay.
Specific to Tim Scott, I also think the Trump era has made him have to publicly give up his integrity as a Black man specifically. If he doesn't embrace MAGA he has no career. And there is nothing else he can do.
The Trump era has made him lose all self respect. I guarantee you his soul is tortured. He has no integrity left and he knows he will be remembered as such. What little good he's done that may have gotten any modicum of respect by not just non Republicans but by Blacks is gone. He will go the Herman Cain route when he dies, whenever that is. Meaning, it will be mentioned and the next day forgotten. Not mentioned pretty much at all except in the negative. A broken tool of white supremacy.