Catholics HAVE NOT existed for 2000 years.
And why is this conversation about me? I am trying to talk about the Bible.
Jesus lived 2,000 yrs ago. He established One Church. That Church is the Catholic Church.
Let used Matthew 16:17-19.
17 And Jesus answering, said to him: Blessed art thou, Simon Bar-Jona: because flesh and blood hath not revealed it to thee, but my Father who is in heaven. 18 And I say to thee: That thou art Peter; and upon this rock I will build my church, and the gates of hell shall not prevail against it. 19 And I will give to thee the keys of the kingdom of heaven. And whatsoever thou shalt bind upon earth, it shall be bound also in heaven: and whatsoever thou shalt loose upon earth, it shall be loosed also in heaven.
Jesus said He will build his Church upon Peter. Church is addressed being singular. Peter from our tradition is our first Pope. He was succeeded by the following Popes:
St. Linus (67-76)
St. Anacletus (Cletus) (76-88)
St. Clement I (88-97)
St. Evaristus (97-105)
St. Alexander I (105-115)
St. Sixtus I (115-125) – also called Xystus I
St. Telesphorus (125-136)
St. Hyginus (136-140)
St. Pius I (140-155)
St. Anicetus (155-166)
St. Soter (166-175)
St. Eleutherius (175-189)
St. Victor I (189-199)
St. Zephyrinus (199-217)
St. Callistus I (217-22)
St. Urban I (222-30)
St. Pontain (230-35)
St. Anterus (235-36)
St. Fabian (236-50)
St. Cornelius (251-53)
St. Lucius I (253-54)
St. Stephen I (254-257)
St. Sixtus II (257-258)
St. Dionysius (260-268)
St. Felix I (269-274)
St. Eutychian (275-283)
St. Caius (283-296) – also called Gaius
St. Marcellinus (296-304)
St. Marcellus I (308-309)
St. Eusebius (309 or 310)
St. Miltiades (311-14)
St. Sylvester I (314-35)
St. Marcus (336)
St. Julius I (337-52)
Liberius (352-66)
St. Damasus I (366-83)
St. Siricius (384-99)
St. Anastasius I (399-401)
St. Innocent I (401-17)
St. Zosimus (417-18)
St. Boniface I (418-22)
St. Celestine I (422-32)
St. Sixtus III (432-40)
St. Leo I (the Great) (440-61)
St. Hilarius (461-68)
St. Simplicius (468-83)
St. Felix III (II) (483-92)
St. Gelasius I (492-96)
Anastasius II (496-98)
St. Symmachus (498-514)
St. Hormisdas (514-23)
St. John I (523-26)
St. Felix IV (III) (526-30)
Boniface II (530-32)
John II (533-35)
St. Agapetus I (535-36) – also called Agapitus I
St. Silverius (536-37)
Vigilius (537-55)
Pelagius I (556-61)
John III (561-74)
Benedict I (575-79)
Pelagius II (579-90)