100% agreed. Yes there are those who will say that they're creating their own thought bubble, but I'd argue it's already happening especially with regards to mainstream politics. Let me as the user decide for myself (and not for anyone else).

Try posting one-sided political content on Facebook and watch your friends on the opposing side unfollow...they're not obliged to listen to your speech. Or on Reddit look at /r/politics vs /r/The_Donald (left vs right echo chambers).