>>>The True Church will always be ready to welcome you back.<<<
That’s what the Mormons and JW’s tell Biblical Christians all the time, as well.
Roman Catholicism is a mixture of Christianity and various forms of Paganism, with some other influences mixed in. I have no doubt some Catholics are Christians, but it is DESPITE the many false doctrines and abominable practices they are taught by the RCC, not because of them.