From a philosophical point of view, what difference does it make if life on earth ends? I am all for colonizing the galaxy, but just because I think it would b

From a philosophical point of view, what difference does it make if life on earth ends? I am all for colonizing the galaxy, but just because I think it would be cool. It doesn't really matter whether or not it actually happens, does it? Why I personally think it is not widely a high priority is because establishing off-world colonies is just one of a really long list of things we could spend our time and money on, and most people themselves would not directly benefit. I would prioritize it to some extent (maybe not highest priority) but I certainly understand why it is not a general priority.