Yeah its pretty bad how people in the USA are getting really screwed with these ASICs from China.
Not only are these ASICs overpriced and have long ROI times...
Not only are these ASICs badly built and have a high rate of failure...
Now you are faced with a huge tariff when imported in the USA.
I don't think there is much you can do. If this was Apple Inc, you can refuse shipment and they would send it back to the source address and you might get a refund, but being Bitmain in a different continent then you have no choice but to pay the import duty.