...I certainly don't confine myself to those that echo my own opinions.
You may not set out to do that, but social media's algorithms automatically do it for you. For instance, if one habitually “likes” and/or clicks on content fostered by vegan enthusiasts or by white supremacists, similar content to the preferred topic will "happen to come up" in one's social media newsfeed. Social media is a marketing tool; we are always being fed more and more of what we consume.
317