Alex would be the only human most aliens had met, right?
At first, people think she’s Kryptonian or a Daxomite, but they quickly figure out that she isn’t, that her species is from some planet nobody cares about, if they even know about it, some planet who’s population hasn’t even gotten past their own moon.
So, the intergalactic community starts to believe that every human is like Alex, and thus – fearless and reckless and basically indestructible.
Alex Danvers goes into space, becomes a space pirate, and humanity gains it’s reputation as Space Orcs.