Why are we searching for a Earth Like Planet if we are killing our own?

Anonymous

Why bother looking for a new planet to inhabit if its going to be easy as looking at earth and how life on earth is to know mankind on earth is just planetary homicidal. If aliens exist I wouldn't be surprised if the reason we haven't found aliens is they are completely aware of how we treat earth and they are purposely either destroying our long distance probes/satalites that find their civilizations. Or are using Spaces natural traits to block our scans of the milky way. There is almost no reason to welcome NASA, China, or Russia's space programs as friendly so long as Earth is not having a sustainable ecology and biomass. Humanity should work on making Earth sustainable before we just abandon her and end up a race without a planet. That has zero ground to stand on as to why other species should trust us to live with them. As we currently stand any smart alien race would kill humanity on sight for just being a destructive species to a planets ecology. We have zero ground to stand on in terms of any right to invade muchless talk to aliens. If anything humanity is a inferior species by millions of years. So long as earth keeps killing off life cause of us.

Why are we searching for a Earth Like Planet if we are killing our own?
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