That’s how they get you, with a nugget of truth that in your context is reasonable and in theirs is explicitly unreasonable. The idea that one can’t choose peace if they have no choice is an old one and philosophers have been thinking about it for ages. There’s nothing wrong with the idea. What’s wrong is that in the context of the alt right they imagine themselves as John Rambo and use nonsense like this as wank material when they’re advocating for (or doing) violence. It’s a story they tell to infantilize and invalidate the left. If we’re all babies who couldn’t even choose violence if we wanted then they should make decisions for us, right? Including the decision to kill us.
Funny thing is that the left got most of the rights and protections that people of every stripe benefit from through outright violence. Strikes and protests and all that are the compromise, remember.
It’s also accounted for almost 100% by mosquitos, specifically the diseases they carry…so not really the mosquitos at all. Quick searching shows snakes following mosquitos with 100,000 deaths caused per year. In any case, the scale is prodigiously unbalanced. Human animals kill trillions of non-human animals, almost entirely for their own pleasure. Non-human animals kill a few hundred thousand human animals (or a bit over a million if you count mosquito-borne disease) in self defense or by accident.