Most western world support Israel not Palestine, or at least politically that is and that's why the people is angry and protesting, The west world values human lives?
you are right it is all about politics and trade.
the US has its reasons for supporting Isreal.. and the rest of the western governments tag along simply because they want to maintain favorable trade conditions with the US.
the majority in my country doesn't really give a rats ass about Isreal (or Palestine if we are going to be brutally honest) but because US is Isreal's ally and we are allied with the US.. our politicians do not speak out for fear of upsetting the apple cart.
it is also true that the Jewish Pro Isreal lobby are extremely effective at propaganda through their control of media etc so if any politician dares to speak out against Israel their words can easily be manipulated and their career can easily be trashed.
you can see the apparent contradiction in some countries foreign policy when their UN ambassadors vote Against Isreal at the UN but their government does not criticize Isreal publicly on TV.
a lot of countries also abstain at the UN because trade and their domestic economies are more important than human rights in some far away land.
that's just how the system works... even if the people don't like it.. that's why we have to agitate for change via civil disobedience and peaceful protest.
Politicians don't lead, they follow... its only when they see mass protests do they make any kind of public statement.
if I was going to be completely honest.. I would say that the UK seems to be one of the most progressive and balanced societies regarding this issue.. both in terms of their public (protesters, media etc) and their politicians.
certainly more progressive than my country.