"Now, therefore, we declare, say, determine and pronounce that for every human creature it is necessary for salvation to be subject to the authority of the Roman pontiff"
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It's always interesting to watch Roman Catholic apologists try to excuse this.
"Every human creature" would seem to include you as well...
If this were scripturally based you might have a point. However, as the papacy is not supported in Scripture and there are no calls to be subject to a pope in Scripture Christians are not subject to the pope.
Believers in Christ are subject to only Christ.
It would except that that is such a blatant power grab that it's ridiculous. And we don't recognize Catholic authority over those who are not Catholic.
The Catholic church has no authority over anyone who does not willingly put themselves under it. Nor does the Catholic church speak for God. God speaks for Himself in His word.