Just on the "There are so much socialists/communists around, including Lemmy’s founders. Even the ‘subreddits’ called communities."

You really need to learn to tolerate and listen to the views of people you disagree with. Just cutting those voices out entirely and not wanting to hear them really is putting yourself into an echo chamber. You are an individual - don't fall into the trap of thinking you need to belong to a "group" and agree with all the thoughts in that group and disagree with all the thoughts outside that group. It's important that you are open to being challenged and hearing other peoples world views, even if yours is ultimately unchanged. Otherwise you'll just be a sheep thinking how others are directing you to think.

Also, the idea that the word "community" is socialist/communist is the most rediculous thing I've read in a while.