That is, we eliminate the mosquitoes, in this way those that feed on mosquitoes are eliminated, the next to fall will be those that feed on these mosquito eaters, and thus we end the trophic pyramid and the evolution of life on this planet, until Let's eat each other.
Wrong way, the right way would be to investigate manipulating people's DNA so that malaria does not infect them.
We've eradicated so many species before and the world is still fine. Mosquitoes are by far the deadliest, birds or bigger insects that feed on them will eat other things.