It's such a sprawling conversation, it's difficult to capture it all concisely. I would like to add to your comment, the number of Cambridge Analytica style bots and disingenuous agents. Plus all the dummies who mindlessly parrot them.
There was a time where I would try to meaningfully engage with anyone to gain a wider perspective, being conscious of filter bubbles, but dissenting voices were always void of substantive reasoning, logic or fact. It was almost always disingenuous, spurrious fallacies.
Now I only engage with people who disagree and put up some evidence of consciousness and reasoned arguments up front. A well documented technique in online debate/disinformation is exhaustion. Control the narrative via flooding all chanels with bullshit, and the power of short simple repetition until lies become truth.
Edit: Exhibit A is the dumpster fire that is the Fascist States of America and the rise of the tech lords. AI only further serves to control the narrative.