Honestly? I went to a Baptist University in undergrad in the middle of the Bible Belt. There were days where I nearly missed lunch because my bf’s roommate felt compelled to convince me that Purgatory didn’t exist, or wanted to hash out how Catholics feel about Mary and why it was wrong.
But then again, I went to a Baptist University in the middle of the Bible Belt.

It was cool to see students so enthused about their faith, and I probably got exposed to a segment of the population that was above-average in their fervor. Once you strike out into the real world, everyone just sort of ignores everyone else’s business and tends to their own world, and the only meaty, chewy religious discussions you get are on the Internet.
To me, debates about doctrine are not “anti-Catholicism.”
Protestants debate among themselves about different theologies.
When my husband and I met as teenagers, we spent many hours debating and arguing, Bibles in hand, about the doctrines of Once Saved Always Saved (my church–Conference Baptist) vs Falling Away and Losing Your Salvation (his church–Assemblies of God). We also debated the ministries of the Holy Spirit and the sign gifts (my church nay on speaking in tongues, his church yay on speaking in tongues).
Protestants also debate among themselves, even within their own churches, about different practices.
E.g., when I was growing up, many of the older Christians in our Conference Baptist Church argued vehemently against dancing, movies (especially on Sunday), secular magazines and newspapers, and of course, the demon rock music (this was back during the early days of Christian rock music). These older Christians basically lost their debate, and today, most evangelical Christians dance, attend movies, read the local newspaper and subscribe to Glamour Magazine, and listen to all kinds of music.
Debates and disagreements are not “anti.” Believe it or not, many Protestants LOVE debates about theology, and they can argue and cite Scriptures all day, BUT…they don’t consider this “hostile” or “uncharitable.” To them, this is fun stuff! At the end of the debate, both sides go out for dinner and coffee (usually not alcohol) and they chat about their families, jobs, gardens, and the local sports teams.
I don’t think Catholics understand this culture. I think Catholics are uncomfortable with debates about theology. But Protestants love this kind of stuff, and consider it “recreation!” (Remember, most evangelical Protestants, at least until recently, didn’t drink alcohol, dance, or listen to rock music, and so many recreational sites were off limits–we had to do SOMETHING for fun!)
But like I said, just because someone challenges Catholic beliefs and tries to disprove them doesn’t mean that the person is “anti-Catholic.” They just want proof for the teaching–all Catholics should be able to offer that proof. Our first Pope, St. Peter, told us that! See I Peter 3: 15 & 16.
It seems to me that true anti-Catholicism is not disagreement with Catholic theology and practice, but rather, an insistence that Catholics are not Christian and are serving Satan.
There are quite a few Protestants who don’t know what the Catholic Church teaches, and they think that the Catholic Church doesn’t teach true Christianity. A lot of evangelical Protestants believe and teach that Catholics add things to the Gospel and burden people with “works” and “traditions.”
But they still believe that Catholics themselves are true Christians, just “burdened” Christians, weighed down with lots of “extra” teachings of the Catholic Church. But still true Christians.
So IMO, these Protestants are not “anti-Catholic.”
In the past (as recently as 30 years ago), many evangelical Protestants didn’t mix with Catholics much, and so people like Jack T. Chick were able to get a foothold and spread their rhetoric.
But in recent years, Protestants and Catholics have been forced to come face-to-face and work together to rid the U.S. of the sin of abortion.
Many Protestants have become close friends with Catholics during various pro-life activities. **Many Protestant pastors and teachers will cite, with awe and respect, the untiring faithfulness of the Catholic Church and Catholics in opposing abortion
as proof that Catholicism is a true Christian church. **
Another reason why Protestants have begun to realize the truth about Catholicism is because of Chuck Colson and Father Richard Neuhaus (RIP). These two men did a magnificant work by starting
Evangelicals and Catholics Together, and Colson in particular has done so much to help Protestants understand what Catholics really teach. Many evangelical Protestant pastors and leaders, including the revered Dr. Bill Bright (RIP) have signed the various documents of
Evangelicals and Protestants Together, and this has really helped Protestant laypeople to recognize what Catholics truly teach, and that they are truly Christians. (Some noted evangelical leaders, e.g., J.I. Packer, have NOT signed the documents and insist that the documents are flawed.)
So now, as a result of the pro-life movement and because of organizations like
Evangelical and Catholics Together, many Protestants and Protestant churches consider people like Jack T. Chick and James White as “crackpots” and “a mile off.”