It is obviouslt false to claim that the Jesus Seminar have anythign to do with the obscurity of the alleged codex. It was identified as a fake before the Jesus Seminar formed. It is not identified as genuine even be scholars who oppsoe the Jesus Seminar. I haven't even seen a hint that Carsten Thiede who ha made controversial claims of eraly Bible manuscript has endorsed this codex.
And if a respected expert stood up and said that the "Codex" was genuine there WOULD be contorversy. No matter what the final outcome was. SO the fact that Gene Scott endorses it without producing a controversy does not tell us that there is a conspiracy. It tells us that Gene Scott's opinion is NOT taken seriously by scholars in the relevant areas. No matter what their religious views.
And your claim that I assume that it is a forgery because of Simonides involvement is wholly false. I accept the - apparently unanimous - judgement of the relevant experts that it cannot be counted as genuine.