The people who agreed to buy it did so illegally. It's just that now, Malaysia is implementing a more robust and wholistic police action to enforce their mandates in that regard.
Sucks for us, but entirely within the rights of the government of Malaysia. If we have a problem with the scammers who took our money, then we're free to take that up in court with the scammers. But that has nothing to do with the government of Malaysia.
I actually don’t think it sucks for us. We’re better equipped to recycle or properly dispose of the waste. It will definitely cost more but I think it’s something that most people are willing to accept.
Even now I’m hesitant to put things like plastic bags and straws into the recycling rather than trash. Only by placing it in the trash can I be more sure it doesn’t end up floating near some reef.
They are illegal imports. The country, standing for the people, does not want buyers/sellers to have trash be imported through cargo containers. Drugs "imported" don't have be sold on if Malaysia doesn't want them, either.