Magneto sounds like some big super villain name but it’s literally just Magnet-o can you imagine if people were named like that. Charles would be Mindo, Peter would be Runo and beast would be Beasto. Not so tough now magneto.
If the Winter Soldier was responsible for the Kennedy assassination and Magneto tried to STOP the Kennedy assassination then that must mean somehow Magneto lost a fight to a guy wITH AN ENTirE ARm MADE OF METAL