Politics have consequences. When elected politicians vote to arms ongoing genocide, people die. When elected politicians vote to deny people healthcare, people die. Politics and its consequences is inherently violent. 
. If you want nonviolence take up rattan basket weaving
Eviction is violence.
Arresting or shooting trespassers is violence.
Stealing people’s food and water is violence.
Destroying people’s food and water is violence.
All of these things are directly attached to thinks liberals would never change.