Many US sellers aren't happy about this, either. Belatedly, they're finding out the stiff costs to their buyers.
Unfortunately, eBay hasn't provided us with a master OPT-OUT feature in Site Preferences. If a seller doesn't remember to UN-check the GSP box when creating individual listings, it's automatically added 😞
Prior to bidding/BIN, ask the seller if he's willing to ship to you directly, thus by-passing eBay's Processing Center and the import fees.
Graciously Grin When You Growl