Is it wrong to hold the general public of Western countries accountable for the offense against the Prophet, peace and blessings be upon him, and does boycotting harm those who have no connection to the offense?

The fundamental principle is that the perpetrator is held accountable for their actions. This accountability extends to those who adopt the act, defend it, or disseminate it with malicious intent. It is not permissible to punish someone who has no connection to the act, in order to align with justice, which is the foundation of the religion of Islam. As for the economic boycott of those who insult Islam and its Prophet, it has been previously clarified: a representative may boycott if it does not result in significant harm. However, those who have already purchased these goods are not required to destroy them, as that would be a waste of money without a legitimate religious benefit, and Allah dislikes the squandering of wealth.