This is the same way of thinking many politicians subscribe to: "There has been one terrorist attack, which killed 20 people, quickly now, surveilance everyone and everything! Think of the dangers!"
Throwing out the baby with the bathing water (does this proverb exist in English?) is not going to do society much good. Just because there some bad actors, one does not need to discard the whole idea of encryption.
Also the dehumanized way of checking for bad content will not help. Bad actors can pre-encrypt or disguise content, whatever you do. Furthermore when the bots have the key to decryption, then the backdoor is built into the system. Bad actors and politicians will try to make use of that.