PoS doesn't have a longest chain dufus. That has been the entire point that has been made to you over and over again. There is no work proven with PoS, thus no way to objectively measure the length of the chain relative to any other. The amount of computational work to produce a block is not recorded in a PoS block chain. There is no computational limit that prevent making a new chain from as far back as the genesis block. The only protection are checkpoints, adhoc social contract, and thus centralization.

How many times does someone have to repeat the same information for you to absorb it in your retarded skull?