With all due respect, this is wrong

Left-Wing terrorist attacks drastically outnumber right-wing terrorist attacks. Religious terrorism is an entirely separate category from Right-Wing and even if you combined the two, Left-wing still outnumbers them.

Left-Wing terror is the third of the four modern waves of terrorism. I get what you’re going for but these facts are just wrong if we look at the most received academic literature

Sources:

William Shughart’s “An Analytical History of Terrorism” (2006)

James A. Piazza’s “Is Islamist Terrorism More Dangerous?” (2009)

Daniel Master’s “The Origin of Terrorist Threats: Religious, Separatist, or Something Else?” (2008)