It's not obvious. At all. That's like saying "people don't want to die from a novel coronavirus so it's obvious they'll take the vaccine". It feels obvious on a surface level, but it turns out reality is way more messy and unpredictable when you don't just run the caricature of it in your head but when it actually plays out for real.
Well, at least it's obvious that humans alone will have hard time fighting superhuman AGI. BTW, it can literally fall from the sky at any moment. There enthusiasts who broadcast our location, with resources and technical level estimates. Sort of naive cargo cult, they probably think biological or artificial aliens will come with truckloads of reparation money.
Nothing about how this is going to go is obvious.