>>31859627A) We die.
Pokemon in general are significantly stronger than any human or human weapon while maintaining a level of sapience this includes a multitude of god mon. Without pokeverse tech on this planet they would immediately eradicate humanity as food would become much more scarce
B) We die
Having introduced 802 species of weather changing high energy animals on this planet, our eco system goes to absolute shit. More than food problems, the sustaining of our plant life comes into question. Immediately coming to mind the guaranteed extinction of our bees and them being replaced with beedrill/combee/vespiquen which birth at much lower rates, require much MUCH more for sustenance and would be unable to pollinate plants with the same efficiency.
C) we are enslaved.
Pokemon are capable of appreciating and exhibit showcases of ego, of course this makes sense that they would find value in lesser species as pets for their own entertainment. This is probably our best hope if millions of these 800+ species just pooed up on this planet one day. Hey, If you're lucky, maybe you'll be a sex slave to a Milotic or something.
D) We Die
Because shit like Groudon and Kyogre exists who can shit on the landscape of this planet just by showing up.