You can't make calcs that violate the laws of physics unless those physics are explicitly stated not to apply in that setting. And I don't mean exceptions existing, I mean a statement that relativity isn't a thing under any circumstances and the entire universe is Newtonian.
Strange's comment explains why the appearance of the other Earth doesn't cause global disturbances.
Cap doesn't fail. He successfully pushes the universe away and stops the incursion.
I'm not understanding how the word "literally" supports what you are saying. Literally means without exaggeration. What was I declaring to be an exaggeration?
I think that you are confusing "literally" with "directly".
Incorrect. Nowhere it says that. It only states that Cap is pushing back BOTH. Note: the incursion only happens when the two key planets collide. So pushing back the universe automatically pushes back the planet since it's a subset of the universe.
Even if pushing back the key planet pushes back the universe (made up speculation) then the feat is simple. Just push back the planet. As what the GS did.
In the below statement, Reed directly states that he is pushing the planet and then clarifies what this equates to between the the double hyphens. The double hyphens work almost identically to parentheses and a phrase in parentheses clarifies the meaning of what it comes after. So when read says "--push the universe--", he is clarifying what pushing the planet equates to.
If "--push the universe--" is removed from the sentence, the meaning of the sentence doesn't change, yet if you remove "push the planet", you change the meaning of the statement.
Also, as stressed in the scan below, the IG cannot work outside of it's native universe. During an incursion, only the Earth of the approaching universe encurs into the 616 universe, thus the IG can only act directly upon that Earth and not the hidden universe.
It is also stated that each incursion functions under the same parameters, so if pushing the Earth is clarified as equating to pushing the universe in one instance, then it must apply to every other and the strain placed on the IG definitely means that it is pushing against universal force.
Any of these characters can. Lol. Thor literally almost destroyed the entire Universe by lifting the tree of life. He destroyed the entire rainbow bridge just by flexing. Hulk is Hulk. He achieve this ft at one of his weakest incarnation. There were beings in this story that was stronger than Superman.
So you resort to unquantifiable feats.
Thor moving the world engine is unquantifiable. We have no idea how much force that took (1000 tons, 100 000 tons?).
A star weight >>>>>> force to break the rainbow bridge
Millions of star weight >>>>> One (1) star weight (in which Hulk never lifted)
So you provided evidence for Thor. But haven't proven why each character can do it.
Let me ask you a question. How much force do you think it takes? Give me a range from lowest to highest.