That's just Catholic propaganda ... Like the Nazis who claimed to be from some pure race ..then they go about to find documents or evidence to prove what is clearly false. There is no succession in Christ ...God calls and empowers with His Holy Spirit ...if a man don't have the power of the Holy Spirit ...You can know he is not called of God.
I don't receive what you're saying a bit. You're speaking from the perspective of someone who has had everything handed to him. Back then the faith had to be passed down through godly men in order to preserve it. However, succession like everything else that men do became corrupted. Now it is grotesque. You're speaking from a very privileged position. Try not to judge too harshly.