We at least know there is no direct continuation to the originals so no need to fit around them

Miller has said set 45 years from now so I make that 2059 (although the film has been in production so long that date could be out).
I wonder when exactly the apocalypse started & peaked. Judging from the state of people and the world & the evident mutations there has to be a reasonable length of time since the radiation etc began. The wars must be not that far from the year we are in now for this to occur. How does Max fit in this as his character should have originated as a cop within a society pre apocalypse?? He can't have been in the wasteland for long enough for the scale of change that has occurred?? None of the characters (some who seem barely human) look like they ever existed in a semi normal world with a semi functioning police force?? I can't see how Max can still keep the backstory of a police officer and still fit in this universe. Lets say he has been in the wastelands for 10 years, how has the world gone from a somewhat familiar, Mad Max 1 world to something more resembling Mordor??
Im certainly not being critical as the trailer looks amazing but for example are we saying that Immortan Joe for example was a store manager or electrician only 5-10 years before we see him??
Can any folks follow my drift on this?
id love to see the experience timeliners have a stab at this