Yeah ok I think your misunderstanding whats that was about....
That wasn't just some bunch of wierdo hippies crying over a tree i dare say the whole thing has been taken well out of context.
Irish: to answer your question.... generally speaking the majority of "hippies" do understand death is a natural part of life... but so is mourning.
When you see on the news that a whole bunch of people have died.... do you feel loss? or do you feel nothing?
When you see on the news that some poor unfortunate animal or a group of animals have lost their lives or been treated cruelly do you feel loss? or do you feel nothing?
If you listen to that woman at the end of the clip she states quite clearly what is happening.... every day we pass places where trees have been torn down and while we may not acknowledge it consciously our subconscious recognizes that a piece of nature was sacrificed.
They weren't morning a tree.... they were mourning all trees that have been sacrificed so that man could "evolve" they were acknowledging mother natures sacrifice for her child.
Never forget, this planet is not ours to own, we are its children.... it feeds us, it clothes us, it gives us life........and if we do not acknowledge this it can at anytime take everything away from us.
Those that have lived through natural disasters are well aware of just how quickly mother nature can humble us.