The mosquites were here before the transformation - they come from the scrapyard up the road - and the changes we've made have actually reduced them in the local area. We've increased the number of frogs, bats, and dragonflies to keep them under control. We don't have ticks to speak of, the possums take care of them.
As for hay fever, you get that in suburbia just as bad or worse. You realize that the Yew bushes that everyone loves planting are among the worst producers of allergenic pollen, right?
Again, this is part of the aesthetic change we need to make. Realizing that we are a part of and depend upon the natural environment. And figuring out how to fit ourselves into it comfortably, instead of trying to remove ourselves from it or pretend we are somehow above it or separate from it.
We have the benefit of better science and a bit of hindsight and can see how the move to lawns has caused pollution on a massive scale and reduced native insect populations. I think at the very least stopping the use of fertilizers and adding wildflower gardens at the borders of your yard is a good plan.
It's gonna be a hard sell to get people to enjoy something their grandparents overwhelmingly knew to be inferior.