If vegans can harm plants, how can they tell others to not harm animals
Plants do not have a central nervous system, nor any pain receptors like animals do. They are incapable to feel pain.
Some plants react to stimuli, like caterpillars eating leaves triggers a release of more mustard oil which is toxic to caterpillars, or the mimosa pudica’s leaves close upon touch. However, this does not indicate “pain” and suffering. They are simply responding to their environment. Similar to how human skin creates more melanin (a tan) upon getting exposed to UV sunlight does not mean our skin is suffering in pain. (Micthevegan)
It takes a lot more plants to create meat. For ex. 30kg of forage needed for 1 kg of beef. [American Journal of Clinical Nutrition.]

Topic: FAQ – Animals