So if you don't know, Kevin Afghani, the new voice actor for Mario and Luigi...
[insert drumroll sounds]
...has he/him in his Twitter bio.
Yeah that's it. It's not that the voice actor uses some kind of pronouns that may trigger people like they/them, xe/xim, etc. It's that the voice actor is a cisgender male who uses he/him like any other normal male human and nothing else. SwitchPlayed is literally whining about nothing.
The he/him indicates support, or at least acceptance, of trans people. The only thing that's good enough for these people is openly hating trans people.