What if Brutus afraid of if Caesar does become king?

Brutus feared that if Caesar became king, he would undermine the Roman Republic and threaten its democratic principles. He worried that Caesar's ambition could lead to tyranny, eroding the freedoms and rights of the Roman citizens. Additionally, Brutus was concerned about the potential for civil strife and the loss of the values that he held dear, prompting him to take drastic action to prevent Caesar's rise to absolute power.