It sounds like many of these people are confusing Commandments by Jesus with Church rules or its operating procedures. Jesus never described how to make a printing press but we still use it to make Bibles. Should we stop printing Bibles?
To start we must understand where the authority for the protestants comes from. If it is the Bible, then we must find out its history, who wrote it, etc. Is the Bible inerrant or inspired? When we study the ‘true’ history of Scripture we find out the Catholic Church produced it. This is the conclusive evidence that the Church is the authority Christ left on earth and not Scripture. Scripture is a part of the Church and not vice versa. Jesus promised to be with His
CHURCH till the end of time.
The Church has many different things it talks about like “Faith and Morals”, Dogma, Tradition, laws, etc… Before you can even talk to protestants you must make sure they are familiar with what each item is, how it works, what it does and does NOT do, how it relates to the others, etc. You must also define the words used as protestants have different meanings for the same words Catholics use like worship and pray as examples.
For example many protestants do not understand what ex Cathedra means or how it works or what the Immaculate Conception means or how it was derived, etc.
The Catholic Church has 2,000 years of history, learning, documentation, etc. It is like a huge pyramid with writings at the bottom that support writings built upon them. Many protestants misinterpret Catholic writings because they do not understand the work written earlier that gives it context. Sometime they don’t even know Catholics had earlier writings on the subjects. Catholic knowledge is like a huge growing pyramid and often protestant knowledge is like a one or two story building that gets torn down and rebuilt with each new preacher.
The Catholic Church has 2,000 years of experience whereas many protestants have just 30 or 40 years of experience (the life of the preacher) repeated maybe 12 times. (Since 1517A.D) Which is greater, 2,000 years of experience or someone with just 40 years that can never grow beyond that? Many protestants repeat the same experience over and over since each preacher is often independent and fails to build on others. Catholics gain new experience as all the Doctors of the Church build upon the foundation of knowledge left to them. Catholic experience is a growth of wisdom, protestant is often just a small chunk repeated indefinitely.
How could they even consider understanding a complex idea like ex Cathedra with only a small amount of experience?