Don’t hunt for echo chambers. Hunt for refining your rhetoric so you can make allies no matter where you end up. Seeking echo chambers is simply defeatist reactionary behavior. Voices of all types will not be permitted in certain areas. Especially if you’re randomly spouting off things that you want agreed with.
Are you an intelligent leftist looking for allies, or a reactionary looking for an echo chamber? If it’s the former, then be happy: You don’t have to waste your time proselytizing there if you know you’ll get banned for it there. If it’s the latter, be happy: now you know it’s not your echo chamber.
Are you intelligent? Then why were you bringing up a 30+ year old tragedy in WorldNews? Tiananmen Square has not been news for decades. Yes, there has been many tragedies since, even tragedies that share many hallmarks. Though you using as evidence that your banning was unjust is… simply inadequate.
It’d make perfect sense if you were constantly proselytizing and comparing everything to China.