What does his Priest think?
Has your friend talked to his Priest?  

Yes, the most anti Catholicism is from within.  

"All the evil in the world is because of lukewarm Catholics"
St. Pope Pius V.

Yes, indeed, the most anti-Catholicism is from within.
He is now adamantly trying to convert me to Islam. It used to be subtle, but now it is open, vicious, haughty.
It is to the point that my husband and I must break off all communications and leave him in the hands of God.
Lord have mercy.

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It makes sense that a flat-earther like your friend could be drawn to Islamism. They have this rule of having to "face Mecca" every day to pray. Therefore, they say the earth is "flat" so that they can determine which direction they have to face. On a spherical earth, many directions could be toward Mecca from places far away, as many different routes can lead to that place.

Who cares about what direction they face to pray? That is nothing in comparison to their practice of their ideology.
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Do you also find something offensive in the fact that ALL Catholic Churches are required to be built with the altar facing east, the direction Christ will come when He returns?
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Only you could be so stupid as to insert FE into a discussion where it wasn't needed.
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It hurts to lose a friend.  Or family.   We will pray for you and confused individual.

I just had a very public debate with my friend's husband and he told me that he read the curran.  And defended Moslems just like your friend.  They same brainwashed defense.  Then I look on social media to learn my niece is a happy kind atheist who dabbles in witchcraft.  Then during dinner with farmer friends. There was Catholic teens and parents defending gαys and belonged to anti gαy school club. They believe
 in contraceptives.  And what do they all have in common?  They all had same priest. My niece had him and was altar girl.  The whole V2 parish votes pro abortion and has pro abortion candidates signs outside their homes.   So priest is in Fatima on 13th while parish going to hell.  

I pray for you and your husband because it hurts.  

Yes, it hurts.

It seems that Moslems are targeting those Catholics who spout anti-Jєω, anti-Hollywood, and anti-Media rhetoric.

If radicalized Moslems are targeting us, then most likely it is Rothschild and Illuminati driven from the top. Think about it. What better way to destroy any resistance than to get within?

Now, I am against the Illuminati, the Rothschilds who created and funded the State of Israel, and the State of Israel, especially for its persecution of Christians in the Holy Land. I also realize that the extremely radicalized ISIS was founded and funded by Israeli Intelligence, British Intelligence, the Saudis, the Turks, the CIA and our Military-Industrial-Complex including Monsanto, Dole, and Dow. Perhaps this is why this crypto-Catholic now turned Muslim has been targeting my husband and me.

So, this is a warning to all Traditional Catholics to be very careful, to pray, and to study their faith, so we will not fall for this trick of the devil.

Ok, First of all, let's get our facts straight.  Your friend might be a person who likes the "smells and bells" of tradition, but he is not a traditional Catholic.  There is a big difference.

Second, the reason people who call themselves Catholic become so enamored of Islamism is because the have lost the faith, if they ever had it.  G.K. Chesterton once wrote, "When a man stops believing in God, he doesn't believe in nothing; he believes anything." ...... 

The faith taught in the Conciliar sect is equivocal and offers nothing concrete.  The faith of Islam is sure and absolute but is built upon lies.  

Yep, they never were real Catholics and a priest or person who teaches real Catholicism is near impossible to find. Those are the reasons they became Mohamedans.

Whether they are fallen away Catholics that become indifferent to religion, athiests, Mohamedans, Eastern Orthodox, Protestants, Buddhists, or just believe in being nice, they are all in the same boat going to hell with nothing to change them. I have relatives that fit the "indifferent to religion, athiests, Protestants, Buddhists, or just believe in being nice", and I do not have anywhere to send them that'll change their ways. Do you think the local Novus Ordo church is going to convert any of them to became real Catholics? I doubt there are any real Catholics left in the Novus Ordo. More than likely they will become even more certain they are doing the right thing by staying away from the counterfeit Novus Ordo church that poses as the Catholic Church