Nor is each Protestant his own pope, as they do not claim papal formulaic assured infallibility, but appeal to the Scriptures as the only objective source which is wholly infallible and are to rely upon its means of persuasion. And Scripture itself affirms men to judging what is taught by the Scriptures (Acts 17:11) and its attestation, as well as to ascertaining their own status as believers by what is written. (1Jn. 5:13)
You're absolutely correct on this. Not one Protestant has ever claimed that he or she was their own pope.
That is simply a strawman erected by Catholics in a bid to discredit and mock Protestants. The claim that they think that is ALWAYS by someone opposing Protestant or Evangelical Christianity.
OTOH, if appealing to Scripture makes them their own pope, then one of two things is true. Either they're right because the pope is right about the authority of Scripture, or the pope is wrong since Protestants who appeal to Scripture are wrong.
Or the Pope is right because the infallible magisterium cannot be wrong because they said the are always right when they speak according to the formula which assures us they cannot be wrong. Which presumes more than the kind of manifest authority God showed the Israelites in establishing His Law. Convinced?