BU model is the Bitcoin model, no changes on its root.
Repeating a lie won't make it true.
Even though you and BU insist on ignoring how _every version ever released_ works-- you don't even need to look to the operation of the system to disprove your belief that Bitcoin does whatever the majority of the hashpower wants-- The whitepaper itself specifically speaks to the potential for a dishonest hashrate majority:
As such, the verification is reliable as long as honest nodes control the network, but is more vulnerable if the network is overpowered by an attacker. While network nodes can verify transactions for themselves, the simplified method can be fooled by an attacker's fabricated transactions for as long as the attacker can continue to overpower the network.One strategy to protect against this would be to accept alerts from network nodes when they detect an invalid block, [...]
The text you quote, "He ought to find it more profitable to play by the rules"-- is speaking to a world where network nodes validate and so miners ability to profitably break the rules is very limited. This incentive assumption is far weaker in the BU world where all users strongly trust miners.
Besides, you've dodged my point there: You can that you want that miners should be strongly assumed to be honest and the system shouldn't be secure against them-- but don't turn around and complain about 'attacks' that only exist in a security model you've already rejected one where miners attacking is a problem.