Pretty pathetic of that article not to give the name of that "priest" so that readers can't Google him and learn that he was disciplined by his own Catholic diocese (!) for his outrageous anti-gay bigotry (!). No Democratic Catholic is going to disagree with the Beto/official Catholic position on this creep, and no Republican Catholic should either.
And pretty pathetic of you to post something that's been widely discussed and debunked on this forum before.
Look at Beto's words. He was attacking the Catholic church as a whole ("the church you represent"), and even criticized the Pope. Don't pretend Beto was following some official Catholic position here.
Pointing out that the Church has moral failings is not anti-Catholic, and if criticizing the Pope were (ipso facto) anti-Catholic then we'd have to say that several prominent conservative cardinals today are anti-Catholic.
Anyway, the answer is almost certainly Harris. Gillibrand has said some things that evidence a profound cluelessness about how Catholic doctrine works that's astonishing in someone who was raised Catholic and still nominally identifies as Catholic, but I don't think she's hostile to Catholicism as such.
What argument is there that Buttigieg is anti-Catholic? Is it just that he used to be Catholic and no longer is? The same is true of John Kasich and for that matter Mike Pence; that doesn't in and of itself make them anti-Catholic any more than I'm anti-Anglican.
I heard about him getting into some dispute with South Bend's diocese's bishop. And he strongly fought to keep a women's health clinic that performed abortions in South Bend open, something the Catholic Church really gunned for closing.
He's going against most all Christian denominations doing that though, including his own -- it's not like it was a particularly anti-Catholic action.
The Episcopal church wasn't trying to close the clinic.
The Episcopal Church opposes elective abortion (like the Catholic Church it allows it to save the mother's life, and unlike the Catholic Church in the case of rape/incest), so it's pretty clear that Buttigieg was going against his denomination, even if they weren't leading the charge.
That's not a knock on him, of course. I'm proud of all 20 candidates in the Democratic field standing up for abortion rights, even though all 20 of them (actually I'm not 100% sure about Gabbard or Yang, but probably them too) belong to religious groups that disagree with their opinion.
The Methodist Church, until very recently, was a member of the Religious Coalition for Reproductive Choice, and, to this day, does not officially oppose abortion. ELCA and the Episcopalian Church are not pro-life churches, by any stretch of the imagination.