not against inanimate objects.
Types of violence
Violence can be categorized in a number of ways. Violent crimes are typically divided into four main categories, based on the nature of the behaviour: homicide (the killing of one human being by another, sometimes for legally justifiable reasons), assault (physically attacking another person with the intent to cause harm), robbery (forcibly taking something from another person), and rape (forcible sexual intercourse with another person). Other forms of violence overlap with these categories, such as child sexual abuse (engaging in sexual acts with a child) and domestic violence (violent behaviour between relatives, usually spouses).
The UK government are snivelling wankers, who are stretching a bad law way beyond reason. They have made holding that placard in the OP "I support Palestine Action" a crime, despite Palestine Action never having committed any violence or terrorism. Rather than fixing the security at their bases, and disassociating themselves from the arms companies such as Elbit whose property has been the target of Palestine Action vandalism,, they gave into the the lobbying by the arms companies.
In 2003, Keir Starmer was part of the legal team defending a similar case of causing damage on an RAF base.
https://en.wikipedia.org/wiki/Fairford_Five
The sentences were small (a conditional discharge and a £250 fine for costs, or a curfew order). Some were found not guilty by juries because their actions were trying to prevent war crimes. Now Starmer has declared supporting the same vandalism as "terrorism". What a coward and liar he is.