Except those who get to pick who is jailed or executed have livelyhoods dependent on the violence continuing.

"It is difficult to get a man to understand something when his salary depends on his not understanding it," -Upton Sinclair

Moreover without anyone to point fear at, ie "elect me to keep you save" we would realize the political class are just leaches and they would be not want them, or at least not the "I bring you safety" ones and they would be done too. A person will follow their incentives and the politicians tell the police what to do and police pick who to arrest and the judges choose who to punish and they all depend upon violence and crime not stopping.

Expecting a more aggressive state to bring peace is like expecting Catholic nun schoolmaster to no slap people with rulers. They'll just move the level or offense that warrants slapping down.

Is a meme not called "violence" in the UK today by those executing the new laws??