You said that in the near future, there are no longer humans on Earth. What happened to everyone? War killed everyone? Tell us more.
Yes it was war, it was a war the likes of which has never been seen before something no one was prepared for because the destabilization of Western nations because the right and left wings become increasingly polarized the left becomes overly violent and soon the jihad becomes present in America and Europe and is surprisingly supported by left-wing extremists and in time gains support from other left wing groups and kind of morphs into a post Trump amalgamation of various extremist groups that begin to mobilize towards random attacks on police now happen as the increasing numbers of immigration bring in extremists and impressionable young people ripe for recruitment. In response the police and military begin to do some rather harsh persecution. In this situation now it has completed morphed from anything similar to our current situation. Flash forward 50 years and we are looking at a war without boarders as the fight against terrorism takes place in the streets in the form of random attacks like those seen in Israel.
The large number of muslems band together in community states in Canada, and the US. Where they follow their own rules. And the same happens across Europe. Many of the people in these communities are just good muslems people the terrorists use it as a variable safe haven and supply network/base of operations.
This of course is only one of many possible futures and it could very well turn out everything turns out fine and we all get along and go in a really good direction. It just depends on if people now can be strong yet compassionate just and willing to discuss rather than destroy. But that's the worst and best case scenario but I am hoping for the everyone getting along future personaly. We could go into a golden era of brotherhood and unity if we play our cards right.