“The Eastern Orthodox beg to differ, and have for going on a thousand years”
You mean the Eastern Orthodox CATHOLIC Church? I said Catholic. I didn’t say Roman Catholic, which is not the official designation of the Catholic Church.
The Roman Catholic Church has certain novelties with which the Eastern Orthodox and Protestant churches have a problem, precisely because they’re not supported by scripture and are not historical. This does not support the claim that your church does not change. It has changed, leading to schism and breaking away outright. Blame for this is not external, it’s internal.