A lot of text with no meat.
Give me one attack vector that will provably negate my ability to have my transactions included in the block or have my node provide a false utxo set? The code is available for public review, go out there and introduce undeniably positive changes to the network surely you will have your commit merged.
Bitcoin's strength is in its unstructured simplicity. The foundation is solid. There's not much one can do except actively take part in its development, be on top of the dev discussions and factually provide technical input. If you do that, there's little chance that your input will be dismissed or silenced.
While it is a good thing to be alert to potential dangers, being frantic to the extent of delusion is counterproductive.
