Plus...what is even wrong with survival? A big part of the movie is the bonds of family. What's minor or uninteresting about people fighting to protect their family?
There's nothing "wrong" with it, there's just very little depth to it because there's no conflict.
The only thing Ego has to tempt Peter with is immortality and it's thrown in at the last second (probably because someone working on the film realized there was not enough happening in the fight.) But was anyone in there seats thinking "Hmm I wonder if Peter will let everyone in the universe die, including his friends, to be immortal and spend enternity with the guy who killed his mom?" That's what I mean by no conflict.
There is a revenge aspect to it...but again there is little depth. What made Black Panther's revenge so interesting is that it festered for a long time and yet he learned from the other characters and did not submit to it. Peter just gave into it instantly. Then whatever emotional weight was added to the conflict was later destroyed for a throwaway joke about his walkman. Yikes!
There needs to be reasonable temptations for the protagonist for the conflict to have depth. Empire Strikes Back is a fair comparison because of a boatload of similarities.
By the time Luke has his hand cut off, we see that Vader is fully willing to let the Rebels go once they serve their purpose (Leia, the droids, and Chewbacca.) Vader wants to end the war and bring order to the galaxy, which the Rebels also want. He wants to destroy the Emporer, which the Rebels also want. On top of that, he threatens Luke's life. So it's very reasonable to wonder if Luke may actually give in and join him. His immediate reaction is to give into fear and flee, but the conflict has such depth that even after the films ends, it's still reasonable to wonder if Luke is still thinking about working with Vader. Wow!
Again, there's nothing "wrong" with it simply being a fight for survival, it's simply not that interesting (especially in the context of a film series where this has been the main conflict like ten times so far) and it's part of the reason Ego is not a very good villain.