Unfortunately, the folks who do the struggle also blow up the buses or support those who blow them - so I have a real problem separating the two. What is more, I cannot in clear conscience support nationalism or religious ideology in any form. I think we are pretty much in agreement on this principle, so I wonder how come you do not support a nationalist movement that bulldozes houses and grabs land in the name of religious ideology, but do support a movement that blows buses and demands land in the name of ethnic identity/religious ideology. I support neither.
Another point - I think that much of the support for the "Palestinian cause" in this country is a knee-jerk reaction to support the perceived "underdog" against the perceived "evil empire" without real understanding of the situation. We had the same phenomenon with the Dalai Lama and China - in both cases the notion of evil empire coincides with popular prejudices (anticommunism, antisemitism, anti-government sentiments).
wojtek