That seems like a good example because I can't see how resources are being kept away from "stop child kicking" in order to promote flossing. Doing both is entirely reasonable.
The resource that is in conflict is political attention. The more politicians and voters focus on EVs, the less is done to improve the walkability and public transit in our cities. EVs distract us from the real enemy: traffic.
Traffic is bad, but fossil traffic is strictly worse than EV traffic. So again, it seems possible to advocate both less traffic and that the remaining traffic should be better.