Then they repeat the list of things they think show its all not built in the accepted time frame.
The OP is saying, basically:
"Let's agree every single argument against the accepted time frame is correct, like, Vyse did fake the cartouche, Egyptologist are incompetent and corrupt, C14 studies are a sham, pyramud texts are not what we think, the geomtric studies are correct, etc etc and you now have the 'proof' the AEs did not build the pyramids, meaning, they were built earlier by someone else."
Ok. Who are these 'someone's'? Provide the archeological evidence for them. Simple question, really.