"Dark energy."
Not gravity.
The evidence for gravity and dark energy is the same. Objects with mass moving.
Your perspective is all over the place. First, the admittance that it is not directly measured, detected, and observed... then back to that it is.
Nope. I'm stating facts. I've stated the same facts every time and my position has been the same in every post. You must be confused. The facts were true before I knew about them and they're true now. Dark energy and gravity ARE detected and measured the same way...by observing objects moving. Any complaints you have against dark energy you must also levy against gravity.
All speculation on something invisible, undetectable, not measurable, hypothetical ,unknown, and no physical evidence.
Why are you suddenly taking about God, here? Off topic!
As said, the name doesn't matter because it is unknown what is being named. It's just as plausible to say that dark energy is a pixie fairy, aliens, or God that is causing the effects on mass and the expansion of the universe. Speculate away....
When something is measured consistently every time we look in every corner of the universe, we understand that force to be a "field" permeating all of existence. The name only matters in that all scientists know they are discussing the same thing. Gravity and dark energy just happen to be the names that were chosen for the two forces that are consistently measured in the manner that qualifies them to receive names. The names COULD HAVE been different, but scientists named them without consulting either you or me.
There is no speculation over the existence of gravity or dark energy. They obviously exist and are detectable by measuring the movement of objects with mass. We certainly don't know how either gravity or dark energy work, so it might be God, or fairy farts, or leprechaun belches, but you can certainly chose not to believe in either or both.
Again, I'm only explaining the facts about dark energy and gravity. It's not like you're going to a lake of fire if you don't want to believe in a scientific fact of two.