Tony Burgess wrote “Rambling about Catholics” , which is a worthwhile read.
To me, Roman Catholics are Christians.
I’m only going to guess from my own observation that whenever a Christian — who isn’t Catholic — states that “Catholics aren’t Christians” this Christian is only stating a “Protestant” evaluation of Catholicism or a mistrust of the Catholic version of Christianity.
I’ve talked with many Christians of Catholic, Protestant and Orthodox denominations because I was seeking out and attending different churches.
Honestly, the only true Christian in 21st century countries is the one who doesn’t get into these fussy and petty theological debates.
Or I mean that a useful Christian in any society today is the one who actually represents their Christian church as a group of people who do charity, who also genuinely get along, and who try to avoid fights with any other religion.
It’s my personal opinion that doing theological debates that lead to alienation and fights between Christians actually are debates that damage the reputation of Christianity.
Christianity gets its good name smeared to those people who aren’t Christians when these people always only see the Christians of different denominations getting into petty arguments over the mother of Jesus, and so on.
So the schisms between Christians because of theology alienate potential people who aren’t Christians.
In all, Roman Catholics are Christians.
The priests of various individual Catholic churches who abused the parishioners’ children aren’t Christian, and have to go to prison for doing those abuses.