I can offer some insights into how other countries might react hypothetically to such a situation based on historical patterns and international relations principles.
Diplomatic reactions: Other countries would likely express their concern over the escalating violence and loss of life in the USA. They may call for a peaceful resolution to the conflict and urge the involved parties to engage in dialogue to address the root causes of the violence.
Humanitarian aid: Countries with good relations with the USA might offer humanitarian assistance to help cope with the aftermath of the attacks. This could include medical aid, food supplies, and support for displaced people.
Security cooperation: Depending on the nature of the guerilla group, countries might enhance security cooperation with the USA to help combat the threat. Intelligence sharing and joint counter-terrorism efforts could be strengthened.
Sanctions and condemnation: If the guerilla group has ties to foreign entities, other nations might impose sanctions on those responsible and condemn any support for terrorism or violence.
United Nations involvement: The United Nations might play a role in facilitating negotiations between the USA and the guerilla group to find a peaceful solution to the conflict. They may also consider deploying peacekeeping forces to help stabilize the situation.
Regional implications: Neighboring countries might be particularly concerned about the spillover effects of the conflict. There could be efforts to address the root causes of the violence and prevent it from spreading across borders.
Political dynamics: The political situation in the USA might undergo significant changes in response to the ongoing violence. Domestic and international pressure could lead to calls for policy reform and a reevaluation of how the government addresses the issues related to "weirdo-introverts" or any other marginalized groups.
It's important to note that this scenario is purely hypothetical, and real-world reactions would depend on a wide range of factors, including the specific context of the conflict, international relations at the time, and the responses of the USA and other countries involved.