It does seem to true that it's more black democrats using racial slurs like "Uncle Tom, Oreo, or Coon" against fellow blacks, however does that mean that it's just Dems who are black being racist.
Not at all:
https://myparistexas.com/local-lcc-president-calls-for-democratic-chairman-gary-oconnors-resignation-after-thursdays-use-of-racial-slur/