I feel like you need a friend, there's an ai called Pi that…

I feel like you need a friend, there's an ai called Pi that's actually friendly and will help you sort through your anger issues. Have you heard of him/her/it?
That said, to address your contrary points, the bitcoin invention actually solved the double-spend problem and eliminated reliance on centralized authorities (like the issuers of e-gold or digicash, or frankly any of those systems you mentioned) due to the decentralized proof of work system on a public ledger. None of the systems you mentioned implemented a decentralized way of preventing double spends.
Additionally, the byzantine generals problem was solved through incentive-based proof of work mining. You see, even if a solution had figured out a way to not double spend (for example proof of stake-style blockchains) the byzantine general problem illustrates a vulnerability in the way of sybil attacks. Sybil attacks are when malicious people or machines can game a system by creating many false identities.
Bitcoin design solved both of those problems paving the way for a viable and scalable digital cash system. I do forgive your careless critique, and hope that I have helped you see the light.