Sorry Mike, that's just in your world. Many many "liberals" are Catholic. I'm actually friends with a prominent Jesuit, and the biggest critics of the boy were Catholics who felt that he was not representative of Catholics or Catholicism. And, the "liberal" commentators on his page, like me, all said that there was nothing either Catholic or Christian about the boy's actions.
Liberals do not attack Catholic, Jewish, or African American churches. Neither do socialists or leftists. The reason I responded to your post is because of your attempt to connect anti-Catholicism to liberals. That's bs. I really don't know where you get your information, but I never heard anyone threaten the youths because they were Catholic or threaten Catholics in general. In fact, the only reason that the alt-right and its media are harping on cap boy is because 1) he is White and 2) he represents Trumpist intolerance --right or wrong.
We know that it's bs because no one would be able to tell the boy was "Catholic" from the video. They had to be told. Otoh, the boy's political affiliation and his "race" were obvious. Now, if it were a Black teen facing off an elderly White man, I don't think it'd be reflective of any religion, and I don't think there'd be much sympathy for him on FOX.
Anyway, it's about him being a White Trump supporter and has nothing to do with Catholics.
Edit: the sad thing is that when it's presented as a joke when there's nothing to smile about. The only way to address it is to be serious. If the idea is to address and prevent anti-Catholicism in the US, then it's easy to look up who does and has done it and why. Blame them. There's a whole wiki entry on it with citations. But, as far as political influences.
With immigrant Catholics increasingly allied with the Democratic Party, most anti-Catholicism was found in the Republican Party typified by the statement of Rev. Samuel D. Burchard that "We are Republicans, and don't propose to leave our party and identify ourselves with the party whose antecedents have been rum, Romanism, and rebellion." [30]
And the results were images like this and lynching of Catholics, but if one does a "Catholic lynching" search, the first results are about the boys. It's an interesting phenomenon.
"A man is rich when he has time and freewill. How he chooses to invest both will determine the return on his investment."