Fair enough, there have been a few. Although I'd say that other than maybe Braun (same fans!) and Rocker, those had much different circumstances. A-Rod's suspension was ridiculously over the top by pretty much all accounts, I assume the fans were applauding his entirely warranted fight against the FO and his decision to return instead of retire. Reyes was returning to his old/original team after five years away ... and in any event
Mets fans got killed for it, so I'm not sure that example really helps the Milwaukee fans' cause. I don't remember Russell getting a standing O in response to the abuse allegations and neither does Google. Unless you're talking about something I don't know about, Odor simply got in a standard issue fight on the field and landed a particularly great punch, not really the same think IMO.
The Rocker one is probably the closest analogy. If Brewers fans wish to be associated with Braves fans of 20 years ago when it comes to issues of how they view racial and homosexual slurs, I suppose that's their prerogative.