Not so for two reasons. First, the number of IP addresses you have is irrelevant. Trust is weighted by the number of signatures made with keys that a server has

Not so for two reasons. First, the number of IP addresses you have is irrelevant. Trust is weighted by the number of signatures made with keys that a server has chosen to trust. Second, you can't "change the consensus". Once a consensus is reached on a given ledger, it's irrevocable. Every validator that witnesses the consensus signs the resulting ledger providing cryptographic proof that they agreed to that particular consensus. A transaction is not considered confirmed until the server possesses that cryptographic proof.