Well you can unsubscribe from those people who tend to retweet stuff you don't agree with. You are free to seal yourself into your filter bubble as much as you want... Just don't try to seal other people into filter bubbles that they never agreed with. You should only have a say about your own filter bubble.
If someone wants to be brainwashed in a particular way by limiting their exposure to alternative ideas, they are free to do that to themselves! But if someone wants to expose themselves to as many diverse ideas as possible and open up their minds as much as possible, then they should also be free to do that!
If this ends up posing a threat to a small number of elites... Maybe it means that these people have too much exposure and power anyway. Maybe society should be reorganized so that power is more spread out; giving up some power is a good way to reduce the number of one's problems and enemies. That's what the British Royal family did; and that's why they still have their heads on their shoulders.
If someone wants to be brainwashed in a particular way by limiting their exposure to alternative ideas, they are free to do that to themselves! But if someone wants to expose themselves to as many diverse ideas as possible and open up their minds as much as possible, then they should also be free to do that!
If this ends up posing a threat to a small number of elites... Maybe it means that these people have too much exposure and power anyway. Maybe society should be reorganized so that power is more spread out; giving up some power is a good way to reduce the number of one's problems and enemies. That's what the British Royal family did; and that's why they still have their heads on their shoulders.