Lu Zihao thought it stupid that the Jins were suffering and agonizing over their self-guilt like this. The Fans were undeserving. Why let such trash affect them to this extent?
He didn't care about the relationship and betrayal between the Jins and the Fans. All he cared about was his sister's safety. Now that his sister was connected to the Jins through Jin Liwei, he thought that it was only natural that the Fans were wiped out of the picture to remove any threats to his sister.
However, he kept these thoughts to himself. He was supposed to be Lu Zihao, Jin Liwei's Fifth Brother. So he didn't say anything, giving the impression of silent support and sympathy. If Jin Liwei's self-guilt would make him a better protector to his sister, he wouldn't stop him.