Oh man, that's a complete disrespect for personal items! Both from seller and customs! What the hell they're trying to check inside the packets? Drugs? And the rest of the items seems a rhino has been playing over it for a week.
That is why I won't buy outside European Union... I'm glad you referred the customs issue too, because my last experience buying items from United States was very bad... Had to pay more taxes than expected and worse, some items were clearly damaged... And I received from two different sellers, though the second was "decent"... But the first one, an album and sealed box, the album was cut in the spine, plus some creases in the corners... Now, the only thing I remember for making that cut damage is when portuguese customs are opening the package with some cutter... Album is always on the bottom and they've opened the package right from the bottom (the adhesive tape for sealing again the package was the proof).
I complained with customs, sent pictures, demanded a response... They told me they would "investigate" but I knew I would either receive no answer (like when a package was lost in UK and after some months, no answer from them, let alone compensation) or no bad handling from customs... And that's what happened after some weeks, a quick answer claiming customs were not at fault and everything was handled carefully, as they "usually" do... If something portuguese are "good" is blaming someone else and not assuming their faults... Fortunately, I had the first seller to refund me the album and part of shipping costs.
In the second package, with the same contents, album was ok, but sealed box came opened... And before receiving it, but after received the first package with the damaged album, I asked the seller how the contents were inside the package... He said the album was inside a zip-lock bag and of course, box was sealed... So when I receive it, I got that zip-lock bag protecting the opened box, not the album (which was completely unprotected, on the bottom of the package)... So you see, either seller was lying, which seems stupid because of the zip-lock bag swap, or the customs just opened the package, opened the box, took out the album from zip bag and then, without even remembering what they did first, put the box already opened inside the zip bag.
Probably I will be doing more videos about these "plagues"... People deserve to know these issues... And by people, I mean both buyers who were prejudiced and sellers/customs who handle the items like shit.