By "their opponents," I meant opponents of the previous Twitter owners.
The neutral platform is gone. As we were so often and so smugly reminded, Twitter is a private company. They can ban who they like. This is the dog-eat-dog public discourse world you chose.
Unfortunately, Twitter still censors and bans their opponents.
https://www.theguardian.com/technology/2022/dec/15/twitter-s...
https://www.vanityfair.com/news/2023/04/elon-musk-twitter-st...