I couldn’t think of any either but it seems we both missed a few popular ones that are newer -

The Hateful Eight (2015)

The Revenant (2015)

Wind River (2017)

And most significantly…

Killers of The Flower Moon (2023)

I haven’t seen them all and whether they are traditional westerns is up for debate, but those are the names I recognized from the Wikipedia pages.

That said, I totally agree with you and am not trying to diminish your point! There’s only been like 4 big westerns since 2012 and I don’t think any of them have the white hero character that OC is talking about.