It's not so much hate as it is distrust in Luceti. He's grown enough to make the distinction between "human" and "Orerines," so he's just generally more wary of others. His race was largely isolated for years, after all.

Oh yes, I know (and Albert knows!) that Yuber's been behaving. That's exactly why Albert hasn't reprimanded him; he just made a remark and left it at that. He knew it was inevitable that Yuber would kill, but the timing (from his standpoint) was terrible. And yes, Sasarai really was the one who started the whole situation of people connecting Albert to Yuber. Lilly hasn't done anything nearly as damaging.