The confusion is that your statement is not true. Many laws, including school vaccine mandates, aren't backed by state violence. They don't require nor anticipate the deployment of state violence to enforce. They're just rules about how a certain program ought to be administered.

Even for the laws which are "backed by" state violence in some deep theoretical sense, I think it's misleading to the point of nonsense to characterize them that way. When the government says "the speed limit on this stretch of the road is 65 miles per hour", they do not mean and the public does not understand them to mean "we will commit violence against anyone who drives 66 miles per hour". It would be ridiculous for driver who's stopped by police and gets a speeding ticket to claim that they've been subject to violence.

To me, it seems clear that this kind of equivocation is an attempt to minimize the actual ongoing campaign of literal state violence by the Trump regime. I'll take you at your word that you're not familiar with that campaign, but please remember that the concept of "state violence" is inherently political. Talking about it implies a position on the actual state and how it actually deploys violence, whether you intend to or not.