There is a very good reason why ebay started to charge fvfs on the total sale price in the US. It was because of sellers trying to cheat ebay out of fvfs by quoting excessively high postage and low item price. Most buyers knew they were doing that but didn't care as it meant the total cost was usually cheaper.

The same thig used to happen here but with relatively fewer listings, more buyers who think the cost of postage vs total cost is an issue and the lack of variety in delivery services it is much easier for them to police excessive postage charges and cancel listings with excessive delivery charges v item weight/size.

You can easily avoid paying fees on the toal, don't list on the US site.

Fees and policies are different for every site and you should always be aware of those differences before you list.