This has absolutely nothing to do with whether people are Protestant or Catholic. Intelligent Protestants and Catholics will not be deceived. Stupid Protestants and Catholics will be deceived.
That’s why this is a BAD POPE. It is an abuse of the authority of the Papacy to publish one’s PERSONAL OPINIONS with all the trappings normally associated with the teaching of the Church.
If people (Protestant or Catholic) are superficial and obtuse, they will see the trappings (”It’s an encyclical!”) and think it’s Catholic teaching.
If people (Protestant or Catholic) have sufficient intellect to read what the Pope actually SAID, they will know that nothing he said falls under the subject matter of the Catholic Faith.
In short: The Pope will be able to deceive stupid Protestants and Catholics. The Pope will not deceive intelligent Protestants or Catholics.
So THIS is where Mary has attained all of her powers!