Okay, let’s see here. If we put aside the climate change killing untold trillions of animals on top of the mass-extinction event, the untold number of humans that have died and will die from climate change, the number of people displaced by climate change, the over a million people killed annually, the few million injured annually (many permanently and debilitatingly), the billions of dollars in annual property damage, the regions destabilized and the hundreds of thousands killed and displaced over oil wars, the lung issues from air pollution and the brain damage from when it was leaded, the neighborhoods destroyed to make way for roads, the poverty in the inner city caused in large part by unsustainable suburban sprawl, the people bankrupted by the need to own a car, the opportunity cost from the money wasted on overpriced car infrastructure, the amount of hours wasted driving because of said sprawl, the contribution to the obesity epidemic by making people more sedentary, the disenfranchisement of the elderly, young, and disabled who can’t drive or would have a much easier time on public transit, that many of those emergency vehicles are responding to car crashes, that lower traffic and less sprawl via public transit and micromobility lowers response times for emergency vehicles (thus saving more lives), and if we totally disregard that emergency vehicles are more than capable of existing in a city built around public transit and micromobility (and much more that I’m forgetting)…

A rounding error in comparison. That your answer was “emergency vehicles” shows that you don’t understand the scope and scale of how badly car-centric infrastructure damages everything it touches. It isn’t on the same order of magnitude; it isn’t even within a few orders of magnitude. If anything, emergency vehicles have been hampered by the rampant proliferation and deregulation of cars, because it makes it harder for them to get to their destination quickly and safely.