Even though he is, I don't think most people consider Romo as Mexican-American. They consider him white.
Yes I always saw him as a white guy with a mexican heritage, but he looks and talks white.
About players relating to Romo and Dak, that is more about personality and age etc.
Dak took leadership classes in college, so along with the psyche degree, he knows how to lead.
Then he proved himself on the field, and I think the few ints, is one thing that made him liked by the other players.
I hope Dak plays as good in the playoffs, No big mistakes, and then of course wins.
About Romo, the team played good for him in that td drive in phil, so it isnt like they dont like him
or have confidence in them, it is that they won all the games in a row with dak, and when a team
has that much success, they are afraid to make a major change like switch QB's
Tony got hurt at the wrong time, it is that simple, and if they had not drafted Dak, then Tony would have taken over game 7 or so,
and everyone would be behind Romo 100% right now.
I think at best with sanchez or showers, we would maybe at best be a WC.
Dak does all the right things, and says all the right things, and plays efficiently, so That just kept Tony on the bench.
I think if Tony was not liked by some other players, it was more to do with how he carried himself, and treated the other players.
More that than any racial reasons.