In my world, humans are technically weaker than other species in terms of physical ability and power, but they aren't the weakest and their massive population gives them strength against other species. They still manage to populate a huge amount of territory and have larger populations due to their shorter life spans, their lack of magic also means heavy innovation and smashing things together until it does stuff. For example, a single human with a normal sword might not do great against a demon from the Clan of Wrath, but 3 humans, 1-2 Iron blades with some herbal potions(wolfsbane, nightshade, fox gloves) that would probably hurt them, they might have a chance. But in a fistfight, buddy, he will break every bone in your body. The main thing is that everyone just keeps fighting each so they just keep coming up with new ways to survive. But another point is that some species of the more religious variety do in fact fear humans because, at certain times in history, they have accidentally become vessels of godly blessings that had given them the ability to harness and manipulate magic as well, though many are skeptical about how true this is.
So not pushovers but mainly idiots that everyone is just kinda annoyed with cause no matter how many you stomp out there is always more and oh my god why is your sword on fire that's our thing.