Liberals believe that the rights of poison ivy and spotted barn owls trump the rights of human beings. They have concocted a massive hoax known as "Global Warming" so that they may continue to subject private citizens to buttsecks under the guise of "saving the planet." Liberals tend to advocate abortion on demand while protesting against the barbarism of mousetraps.
Liberals have tree senses. For example, whenever a man chops down a tree for firewood, liberals' tree senses start to tingle in their lower regions and can tell a tree is in danger. This sense is used so liberals can hunt down the man and organize a fundraiser/protest/sit-in/orgy to protect the tree.