Which commits more attacks in the USA, right or left extremist?

Checked on September 23, 2025
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1. Summary of the results

The analyses provided suggest that right-wing extremist violence is more frequent and deadly than left-wing violence in the USA [1]. According to these sources, approximately 75% to 80% of U.S. domestic terrorism deaths since 2001 were caused by right-wing extremism [1]. In contrast, left-wing terrorists are responsible for about 2% of murders [2]. However, it is essential to note that politically motivated violence is rare in the United States, accounting for only 0.35% of all murders since 1975 [2]. Some sources also highlight the importance of considering the global perspective on conflict and violence, mentioning a rise in attacks carried out by actors with far-right, white nationalist, or anti-Muslim beliefs in Western Europe and North America [3].

2. Missing context/alternative viewpoints

A key missing context in the original statement is the definition of domestic violent extremism and the threat landscape, which is discussed by the FBI source [4]. Additionally, the Strategic Intelligence Assessment and Data on Domestic Terrorism report is mentioned, but its specific findings are not provided [5]. Alternative viewpoints, such as the claim that the violence problem is on the Left, citing various incidents of Antifa violence, are also presented [6]. However, this source does not provide a balanced view of the data and focuses primarily on left-wing violence. It is crucial to consider multiple sources and evaluate the credibility of each analysis to form a comprehensive understanding of the issue. For instance, the source that argues right-wing terrorists account for 63% of murders, and left-wing terrorists account for about 10% when excluding the 9/11 attacks, provides a different perspective on the comparison of right and left extremist attacks [2].

3. Potential misinformation/bias in the original statement

The original statement may be misleading or biased as it does not provide a clear definition of what constitutes a "right or left extremist" attack, which could lead to misinterpretation of the data. Furthermore, some sources may have a political agenda, such as the source that designates Antifa as a domestic terrorist organization without providing a balanced view of the data [6]. The sources that suggest right-wing extremist violence is more frequent and deadly than left-wing violence may be influenced by a liberal or progressive perspective, while the sources that argue the violence problem is on the Left may be influenced by a conservative perspective [1] [6]. It is essential to evaluate the credibility and potential biases of each source to form an accurate understanding of the issue [1] [2] [6] [3] [4] [5].

Want to dive deeper?
What is the definition of right and left extremism in the context of US domestic terrorism?
How many attacks have been attributed to right-wing extremism in the USA since 2020?
Which extremist group has been responsible for the most fatalities in the USA in the past decade?
How does the FBI track and classify domestic extremist threats?
Are there any notable differences in the tactics and targets of right and left extremist groups in the USA?