"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".
> 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.
The government's idea of regulating encryption-related technologies is to prohibit anyone but the government from using them. No, thanks.
We don't regulate/protect the SCADA systems that run utilities like water treatment plants and the power transmission system.