> there is a parallel universe out there without mosquitos, and everything is FINE

...on TV, and videogames.

Lets return to the real world. Can you name one terrestrial ecosystem that works currently without any Diptera?.

you see what happens is without the skeeters, you dont have any food for the frogs, and without the frogs you lose the birds, and no birds means no cats and no cats means no pets and no pets means human suffering. or is there something else?