So the topic about Pokémon driving cars reminded me of this idea that I had a while ago... I think in the Pokémon world it would be extremely likely for the Alakazam to overthrow humans and take over the world.
The Alakazam are extremely smart, with IQs so high that we wouldn't even be able to measure them with an IQ test. Surely smarter than any human. And an intelligent being would not be okay with being enslaved by a human (even if it was friends with the human, it wouldn't want to be confined to a Poké Ball and forced to go everywhere that that human wants to go with no say in the matter and being forced into battle just to win for the human). So it's highly likely that they'd revolt. Either to make themselves equal or to overthrow us.
Now think about why humans are the dominant species on Earth. Its because we have technology... for example, we have guns that we could use to defend ourselves with if gorillas attempted to take over, and if we didn't have the guns then it would certainly be possible for a gorilla to just beat up humans and take over (because they are stronger than us), that is, if they were smart enough to do so. Here's the thing... Alakazam are extremely smart and would be able to create technology and weapons that are way more sophisticated than our own. And in addition to that, our guns would probably have no effect on Alakazam since it's Psychic and can put up a Barrier or Teleport away or use its Psychic powers to stop the bullets if it's shot at. Whether we are completely wiped out or imprisoned or not disturbed at all or whatever is all up to the Alakazam to decide on.
And here's a bonus for them if they do take over... they are human-shaped and relatively the same size. So once the take over is over, they could just use all of our stuff. Our houses, our cars (not sure why they'd need cars though), all of our tools / appliances, our TVs, our clothes, just about everything that they may want that they don't feel like making, they'd have access to.