You wanted to say “You can be on lemmy without bringing reddit here.” And phrased it as a bad question so you could post it here. You just want to soapbox.
Managing the content of your own feed is your responsibility. If people post off topic in communities, handle it with a report, not another post.
Bluntly, you are creating what you are complaining about. This thread is the most discussion about reddit I’ve seen in a week or more.