No good reason? She was asked about the party becoming the party of "identity politics" and rightfully lambasted Sen. Sanders who has said since the defeat in November that Democrats need to be quiet about "social" issues and primarily focus on economic ones so we don't piss off triggered snowflakes in the Rust Belt. She beat him soundly in the primary so clearly her way is the way the majority of the party wants to go.
Hillary Clinton lost because of who she is, not her policies.
Sanders can go minimize the concerns of racial minorities in 99.9 percent white Vermont.
You know what would help minorities to get out of poverty and blighted inner cities? Left-wing economics instead of sucking up lilly-white Wall Street.