In the Book of Revelation, there are seven letters from Christ directed at seven examples of the early Church. Each contained a warning, because even at that early a stage, the Church was already being led astray by false priests, by wolves in sheep's clothing. Were He to write a letter directed at today's Catholic Church, it would be as scathing as His condemnation of the scribes and pharisees.
The mainstream Catholic Church is an abomination, and the Vatican is corrupt. I would advise all true believers to search far and wide until they find a church which is true to the Bible and true to the Gospel, and which categorically denies the authority of the United Nations, international law, and global liberalism. A church which recognizes, instead, the sole authority of the one Living God as He has revealed Himself through scripture and through Jesus Christ, King of Kings and Lord of Lords.