I don't mind paying customs fees, to Customs.
What I don't like is when DHuL/UoPS/Fed-Up volunteer themselves to be my broker without my having asked them to do so; I've yet to find that self-service option — it's just a tick-box for choosing a shipping company and that's it. I'll look for fine-print links next time I order stuff, but I'm fairly sure there are no sub-options after having chosen a shipping method on the vendors' sites I've used.