You stated: "Apostolic sccession is necessary..."
Yes, it is necessary.
IDK, what example you could understand. In a car, alternator is a necessary part. But you still could drive a car without alternator for some time using battery. Same here.
Church could lose apostolic succession for multiple reasons, but if it will not be restored, this church will eventually degrade to what we see in Rome now. That does not mean that apostolic asuccession prevent degradation.
Car could have perfectly working alternator, but completely broken engine.
Church also have to had "alternator and a place for it" in the first place. You can't create a Church without apostolic succession. Since there is no any apostoles currently around, creation of a new Church is not possible.
Church is a car that could drive you to salvation, if you will use it according to original user manual. It is a long road, you have to fill tank, replace brake pads, fix broken parts and change tires, oil, brake fluid and so on. Only if you do all of that things, not ones you want, but all of them, you will be able to reach your destination far away. You will not be able to reach destination if you don't have alternator, or tires, or transmission, or engine. You will not able to reach destination if you don't dare to fix broken parts.
Hope this analogy is simple enough to get what is Church, and why old Orthodox car, being older than all other, newer shiny and comfortable ones, still running fine and with highest probability will reach its destination with as many passengers as would choose to join.
You stated: "Apostolic sccession is necessary..."
Yes, it is necessary.
IDK, what example you could understand. In a car, alternator is necessary part. But you could drive a car without alternator for some time using battery. Same here.
Church could lose apostolic succession for multiple reasons, but if it will not be restored, this church will eventually degrade to what we see in Rome now. That does not mean that apostolic asuccession prevent degradation.
Car could have perfectly working alternator, but completely broken engine.
Church is a car that could drive you to salvation, if you will use it according to original user manual. It is a long road, you have to fill tank, replace brake pads, fix broken parts and change tires, oil, brake fluid and so on. Only if you do all of that things, not ones you want, but all of them, you will be able to reach your destination far away. You will not be able to reach destination if you don't have alternator, or tires, or transmission, or engine. You will not able to reach destination if you don't dare to fix broken parts.
Hope this analogy is simple enough to get what is Church, and why old Orthodox car, being older than all other, newer shiny and comfortable ones, still running fine and with highest probability will reach its destination with as many passengers as would choose to join.