It is not possible to completely remove negativity from this world. One must aim to improve ones ownself rather than improving others, which will set an example and gradually people will improve.
To know more please click on:
English: https://www.dadabhagwan.org/path-to-happiness/self-help/suspicion-and-fear/world-improves-through-love-not-fear/
Gujarati: https://www.dadabhagwan.in/path-to-happiness/self-help/suspicion-and-fear/world-improves-through-love-not-fear/