Counterpoint: yeah we do, we're already doing it.
Of course, not everything has to be tested every time, that's where certifications come in - get your stuff tested when you first want to import something, get a certificate, don't need to get it tested again every time. But if you fail a spot check you lose the certificate and import righs.
Good luck with million+ products from ie China going through tens of thousands of companies. Or Bangladesh, Pakistan, Morocco, Vietnam and so on and on.
I get you guys, its the ideal and good to strive for, but then go out and check ie kids stores or any supermarket. Out of touch with reality.
And why is that? Since majority simply doesn't care.