Why is the German Jewish Magneto always portrayed with an English accent?

Marvel Ultimate Alliance 3, Marvel vs Capcom, Marvel Rivals, pretty much every modern version of Magneto always has an English accent.

I remember my first time experiencing Magneto was X-Men animated show and Pryde of the X-Men and neither show did he have an English accent?

It wasn't until after Ian Mckellen portrayed him that I started seeing him portrayed with that accent.

It seems strange to me that he has retained that trait.