"The only thing that can stop a bad guy with an axe is a good guy with a gun."

No you didn't, it's called tree spiking. It was highly popular in the 70s to reduce the expansion of suburbs. Here's a book describing it

https://www.britannica.com/topic/Earth-First

Earth First! was widely known for its tactics. It generally eschewed the lobbying and political deal-making associated with mainstream environmental organizations. Instead, its activists typically engaged in nonviolent direct action, such as civil disobedience to block environmentally harmful activities and “monkeywrenching” (the sabotage of machinery involved in environmental destruction). In the first years after the group’s formation, the use of direct actions—standing in front of bulldozers and putting spikes (e.g., metal rods or nails) in trees to prevent them from being cut—brought national news coverage to Earth First!. The group subsequently grew.

"So anyways, I started blastin'"