To be fair, a blank slate can also result in collective choice paralysis.
If it had been clear from the start that they’re just doing another Fallout, then they could have gotten started on a main quest surrounding a nuclear freak accident with post-apolyptic hardships and maybe a reunification side arc.
With Starfield, they first had to decide what problems might exist in this blank slate, before they could start telling about it.
They’re mentioning the race and gender basically to say “a privileged person”. Having privileges obviously influences your character. And race+gender correlate with privileges.
So, while there’s no direct causation, and us white males who aren’t chumps don’t need to be offended, it’s often good enough of an explanation why a particular white male might be a chump.