Ok let's talk g5

I hear people on the internet asking how Twilight's gone and all harmony went to hell in Equestria. To me the answer is simple, she just faded. Remember Season 7 Episode 12, where Discord was fading because he wasn't chaotic I feel that the same happened to Twilight. Her friends died over time and Celestia and Luna might have fade because they were not doing their duties of raising the sun and moon. But their fading took place longer as they still retained some of their ability to raise the sun and the moon. Once all her friends and family have passed, Twilight would become depressed as we all know because she cannot control her feelings well and lose the meaning of friendship and would fade faster. What happened after that simply between the 3 tribes was a lot of confusion and anger as they tried to share power but failed as alicorns were the symbol of unity between the three tribes. This is assuming that Flurry Heart faded or died as well though. And since all of the magic of friendship is gone, so did all magic