Before Newton gravity was still "detected" by people. You on the other hand just made up an undetectable force.
This force is detectable by you, just go and look at the horizon, see the way you cannot see things more than about 25 miles away. That the effect of this force pushing the light away. Your problem is you're confusing "Scientific Theory" with "guessing"
No. Your problem is that you are taking something as the most likly, to have been proven. And just assume that I must be wrong in my assertion that it is unproven.