According to Brutus Why should Antony no be killed?

Brutus argues that Antony should not be killed because he believes Antony poses no threat if left alive. He views Antony as a loyal follower of Caesar who will not act against them without his leader. Additionally, Brutus believes that killing Antony would be seen as a brutal act, potentially undermining their cause and making them appear tyrannical. Instead, he advocates for a more honorable approach, focusing on the assassination of Caesar alone.