I think there is also a lot to say that your speech is hardly free if you are drowning in tons of bot created content regardless of who is generating that content. I feel there is not to many good compromises that can be made it :*(
Sowing discord is the well-known age-tested strategy. It doesn't remove freedom of speech per se, but it drowns it in the noise.
The very goal of this attack on the freedom of speech is to make people lean towards the easiest and "naturally occurring" pseudo-solution to make those bots shut up. Then abuse the same censorship mechanisms to control the discourse.
Sadly, I don't know how to solve this. Censoring speech is a non-solution. Building web of trusts will inevitably create even stronger information bubbles (making it easier to divide and conquer - we're seeing this happening).
