He wasn't convicted of the crime of rape because he hasn't, to date, been criminally charged with rape. He was sued civilly by E. Jean Carroll for sexual abuse and defamation, and found by a jury liable for both acts. Which means the jury found that sufficient evidence existed that he did sexually abuse her even without a criminal conviction for rape.

The judge later clarified that the acts that the the jury found him liable for, forcible penetration of the vagina with his fingers, do constitute first degree rape under New York law. And first degree rape in New York has no statute of limitations. Were he to be tried for rape, the evidence in the civil suit would be admissible and he would almost certainly be convicted of rape. Weird that hasn't happened, but here we are.

So technically, he is not a convicted rapist as he has yet to be criminally charged and tried for rape. But he has also been determined by a court and a jury to have absolutely sexually abused E. Jean Carroll in a manner that constitutes rape under New York law. "Rapist love this one weird loophole."

Well, the usa passed a law that makes a tomato a vegetable instead of a fruit, so labels don't mean much there (neither does law anymore), so who knows? I agree though because of the "walks like a duck" logic.