Is working around accessing an embargoed site really any better than just accessing it directly? Morally, what's the difference?
If everyone just actively boycotted that site, it would become irrelevant overnight. Anything else is simply condoning it continued existence. Don't kid yourself.
The two are not mutually exclusive. Sometimes content is posted on a site people don't want to support, so making a copy of it and viewing/sharing the copy is preferable.