You are not safe as you think, if you eat stuff coming from exotic places. And at least in Europe we eat tons of stuff coming from all over the world, I can't imagine US is different.

Also, ie in case of turmeric, imagine you eat at restaurant food that you may not even realize has some in the gravy via using a premade spice blend with it, which is using turmeric imported in bulk box from Netherlands, which has been repackaged 'from various sources' if they even bother to mention that.

And how often do you think the test are made? Every box, every batch, every month, every factory/farm etc? 'Strong consumer protection' is rather 'some protection', but there ain't power on Earth currently able to fully protect you even from these basic things. And then as you mention we can go into dodgy but still legal chemicals that will be banned in next decade or two, ie these days literally everything is contaminated by some form of PFAS everywhere. Ignorance is sometimes a true bliss