@maxdancona,
I DO understand AMLO voters.
They are fed up with PRI corruption, the PAN governments were either mediocre (Fox) or a social disaster (Calderón and his war on drugs).
Peña Nieto has been a complete failure: slugging economy, growing violence, more inequality , rampant corruption, cynicism and a terrible communication strategy. Plus, it has been as soft in anything regarding Trump.
People want change.
The campaign was mostly against the Front. The government and PRI attacked Anaya for supposed money laundering, which was never and will never be proved, in order to get into second place and gather the anti-AMLO vote. Meade never got there. Simultaneously, AMLO succeded in presenting PRI and PAN as two parts of "the mafia in power". The concept PRIAN worked for him. The Front never managed to have a distinct face, in most places it looked like "PAN and allies", not like a new thing.
All this said, I think many people don't realize that the type of change AMLO represents means a jump into the void.