You can call her whatever you want, but it's undisputed
If it were "undisputed," we wouldn't be having this conversation.
among PhD historians
Appeals to authority don't make your position correct, only supported by fallacies.
that the Catholic Church is the movement /organization /etc. that began in Judea in AD 33.
Except that it isn't.
Sorry, but apart from your dates being off by about 3 years, the "church" you're referring to that you claim was the catholic church was in fact the church of believing Israel, which was ALL JEWS.
Christianity, on the other hand, is neither Jew nor Gentile, and cannot be the same church because of that simple fact.
Everything else, including your own preferred spin /tradition,
We don't make an appeal to tradition like you do (which is another logical fallacy on your part).
We simply look at what the Bible says.
is a splinter group, and derivative /denominational of the original.
False and an appeal to tradition.
The "original" church was Israel. The Body of Christ was introduced with Paul, who taught a different gospel than the Twelve. The Catholic church has twisted those two churches together and claimed they are one church. But that's not what the Bible teaches, and you'd know that if you were paying attention when reading it.