There are many people who believe the opposite, btw. Earth has a disease. And the disease is called man. The world would be better off without humans, etc. Say that in a pub - you’ll get nods. But say you want humanity to populate the universe, and people will think there’s something wrong with you. Says less about the speaker and more about those who listens, if you ask me…
I love going to the beach, but I wouldn't hop into a car with no wheels and blood trickling from the trunk, just because the guy wears a hat saying "I love the beach! That's where I'm driving! No detours, no tricks." and makes grunt noises at me because he never had the patience to even learn to properly mask and come up with a coherent ruse. To make that about "beach haters" is as expected as it is off the mark.
So the most well intentioned person doing awful things? In my mind he's an awful person. But this also goes the other way as well. Imagine you're right, and the idea of getting humans into space is some elaborate scheme to somehow get more leverage over humanity. Awesome! Because it's highly unlikely such schemes will come to pass in any sort of remotely realistic way, but we'll be left with the means of humans actually meaningfully expanding into space.
I'd love to see as sharp increase in the number of evil people plotting to do good things to further their evil ends. All the 'good' people doing evil deeds in the name of some grand end that never happens is quite tiresome.