again, that clash is not the cause for the problems we are facing.

People/institutions didn't want to fix real problems. This unwillingbess/inability causes problems to spiral and more and more problems to appear. Including the clash.

Cartoonists at Charlie Hebdo weren't killed by capitalism or global climate change.

Personally, I consider the chilling effect of such events on freedom of speech and art quite a huge problem. This freedom was crucial to European prosperity.