Divide and Rule for Diane Abbott

Diane Abbott surely is making more work for herself.
   Last night on Twitter she made a comment which one might either mistake for sarcasm and humour or a rather misguided comment.

  It began with Bim Adewunmi, another Twitter user, commenting on the use of the term "Black community" on the news.

"I do wish everyone would stop saying 'the black community' though. WHICH ONE?"

And then:

"I'm saying that the use of 'black community' in media is often lazy way of generalising."

Then shortly after she posted:

"Clarifying my 'black community' tweet: I hate the generally lazy thinking behind the use of the term. Same for 'black community leaders'."

Cue Diane Abbott's response:

DA: I understand the cultural point you are making. But you are playing into a "divide and rule" agenda.
BA: Maybe. I find it frustrating that half the time, these leaders are out of touch with black people they purport to represent.
DA: White people love playing "divide & rule" We should not play their game #tacticasoldascolonialism

White people love playing divide and rule? Is that even true? Either she was being incredibly ironic or she was trying to use and absurd comment to make a point.
  She then went on to say:

"Ethnic communities that show more public solidarity & unity than black people do much better #dontwashdirtylineninpublic"

So she's clearly trying to make a point about the black community and integration and it's relationship within London and around the country, however she did it badly.
  I still am confused as to what she meant by saying what she said. Of course she deleted the tweet but not before it had been retweeted by someone I follow.
  "White people love playing "divide & rule" We should not play their game." What does that mean, can anyone tell me? Also, can someone please explain what her intention was with that statement?

Anyway she's now trending at #dianeabbot if you wish to follow the drama.
  Enjoy!

Sources:

https://twitter.com/#!/HackneyAbbott