If you can show me any evidence that any of these boycotts have significantly changed the left-leaning opinions of anyone in the mainstream media, I'd like to see it.

Has the LA Times suddenly gone pro-Israel? In fact, such boycotts are a drop in the bucket in their subscription bases. Censorship is censorship only if it works.

The fact is that being pro-Palestinian is locked into the leftist worldview at the molecular level, and you could no more have the L. A. Times editorial policy be pro-Israel than you could have them be anti-abortion.

And I fail to see why you consider European media (if anything more leftist than ours) more "balanced" than America's, unless you are referring to the standard liberal view that the "balanced" view is the one that agrees with you.