Very interesting. I didn't know that he was Ethiopian. Reading the Wiki article it sounds like he attacked the Kaabah because he was disgusted by the rampant idolatry that was there before Islam. It seems like it was a bit of a misunderstanding.
It is Wikipedia after all, however the real reason was that nobody came to his own kaabah (made of gold ) in Yemen and people prefer the old Kaaba. You don't know how those habashi hated Islam later during middle they tried to help the Portuguese to loot prophet Mohamed 'S grave but Ajuraun/ottoman/Indian sultanate battled them. I will send you video but it is in Arabic.