The best way to get Catholics to leave Catholicism is to LIE about what Catholics believe.
Vilify the catholic and present teachings that are not catholic as catholic.
Example: Catholics worship Mary, Catholics are pagans, the Catholic is in league with the devil. the Catholic worships people and saints, the catholic teach salvation by works, Catholics don't believe in the bible.
The only way to defeat Catholics is if we make up what they believe and present it as something they actually believe.
What you don't want to do is admit what they believe what they actually teach, stay away from church history. Make sure from the moment Jesus dies poof the church disappears and teleport it to 1500.
Do not study anything between 1500-33 ad.
Don’t Read Scott Hahn
Don’t Read Church History
Don’t Read the Early Church Fathers
Don’t Meet Any practicing Catholics
Don't pick up a rosary or pray about it.
Don't let a nun pray for you. The Penguins got a strange knack for getting what they pray for. They will actually spend hours praying to a Eucharist bread.
Folks often mistake the church structure hierarchy thinking some pastor or pope is the top dog. Its the Saint who you have to look out for. They are not always obvious like a Mother Theresa. These loose cannons are like catholic jedi. They transcend titles.
Don't run into the devil. When stuff really goes down and you need exorcist, Catholic holy water actually works against vampires.
A question often asked is How are Catholics able to perform Exorcisms if their beliefs are unbiblical.
Folks will be very reluctant to get Catholics till things get REAL Often this is followed with the only reason catholic can exorcise demons is we are on the same side, same accusation Jesus would get for doing the same thing.