We must protect our ocean as if our lives depend upon it, because they do.
Most of life on Earth has a deep past, much deeper than ours. And we have benefited from the distillation of all preceding history, call it evolutionary history if you will.
There's plenty of water in the universe without life, but nowhere is there life without water.
I personally have stopped eating seafood.
The end of commercial fishing is predicted long before the middle of the 21st century.
Humans have always wondered the big questions, "Who am I? Where have I come from? Where am I going?" It's part of human nature. It's perhaps the underpinnings of religion.