There are several people today who claim to be the pope. That doesn't make them the pope.
There was a time when most any bishop was referred to as (what translates into today's English) as "pope", papa.
It's not all 'Rome's fault that things turned out (developed) as they did. It is the sin of the church itself which set the stage(s) to bring it all about.
It was not for nothing that Christ said, (Matthew 8-10)
But you, do not be called Rabbi; for One is your Teacher, the Christ,[b] and you are all brethren.Do not call anyone on earth your father; for One is your Father, He who is in heaven.
And do not be called teachers; for One is your Teacher, the Christ.
More word games.. we all know about the anti popes..
Heck there are Romanists that still claim the church is infallible..and we all know that is not true