To clarify: I have no problem donating to fight for civil rights in the US. I know they affect me and there is not much else I can do as a European to change US policy.
I do have a problem though with framing the debate as "privacy for the American people", that may be a good cause, but it is a domestic cause. I'd much prefer if this were framed as a global one. (And I'm sure Lavabit had international customers.)