And this is how you lose touch and get trapped in an echo chamber, another thing current social media are great at.

(I presume you keep the access available for people agreeing with you.)

Unfortunately, most vocal are people with too much free time and not much else to do, or wannabe political activists. And of course tools, trolls and provocateurs.

Its not an echo chamber if you just block people who rely simply on ad hominem attacks, its filtering, as long as you aren't just blocking people who disagree with you.

The algorithms are the much greater contributors to echo chambers than individual peer blocking.