If Twitter shut down tomorrow, the world would be a better place, and nothing of great value would be lost. I'm not sure if I can be convinced otherwise.
The human, cultural and monetary cost of polarizing national and world events which find their origins, planning, fomenting on twitter have to be staggering.
I encourage everyone to be very aggressive with muting/desactivating retweets/having a private account/not quote-retweeting/not react to everything that happens in the world in general, this way it's possible to not expose yourself too much hate.