How is this a constructive comment? You're just stating your position again. We all already know your position. I can just as easily say:

Bayesians should not answer 1/3. Nobody should answer 1/3: that's the wrong answer.

If your interpretation of the word "credence" leads you to answer 1/3, you are fighting with the rest of the community over the definition of the concept of subjective probability.

If the entire scientific establishment is using subjective probability in a different way, by all means, show us! But don't keep asserting it like it has been established. That isn't productive.