"Why doesn't the state protect everyone from ___?" is a naive question.
Almost anything can be a significant security issue for the state. They have to carefully choose where they are going to spend effort & money.
And they pick whatever will keep them safely in power... which never ever includes "strict regulation of vacuum cleaners".
We don't regulate/protect the SCADA systems that run utilities like water treatment plants and the power transmission system.
> which never ever includes "strict regulation of vacuum cleaners
but has routinely included "network and encryption related technologies".
It's just that these two worlds now, amazingly and probably incorrectly, overlap.