Einstein equations don't work at large scale?

[A.T.]

I am so disappointed that physics is not 100% truth like math.

Math is not the truth, it merely needs to be self consistent. Physical theories must be self consistent, and also agree with observation.

Can physics be set from axioms, from first principles that are "truth"?

How would know they are the truth? You don't know it for mathematical axiom either. They are just assumed.

 

[PeterDonis]

Because this seems logic to me.

Logic depends on assumptions. What if your assumptions are wrong? Or worse, not even wrong?

Why you think that is not case in reality?

I said no such thing. I made no positive statement at all. I don't even know if the alternatives you stated are the only possible ones.