No they’re not. And you know that.
You think Antifa and TPUSA are the same people? If you believe that, then I feel sorry for you.
Antifa or anti-fascists are groups that pop up when the threat of fascism is building. Without the threat of fascism, anti-fascist groups dissolve which does put them at a disadvantage against fascism. In the 30s and forties there were antifascists groups in almost every nation in Europe.
In America there were anti fascist groups protesting the gathering of The German American Bund in Madison Square Garden. There was a bit of controversy after that event as one of the speakers had thrown a Nazi salute. In response they claimed it was a Bellamy salute which was a terrible deflection as there were literal swastikas hanging all around the event.
The US military in WWII would have also been an anti fascist group as they were battling directly against fascist nations.
Antifascists have never been the bad guys. Unless of course you are a fascist or a person that fascist propaganda is working on.