The author brought it on himself by blasting a bunch of people who may support Trump for various reasons — this was a story about Lochte and his reprehensible acts at the Olympics (well, outside of the Olympics). The author attempted to make a joke at the expense of people who wanted to read an opinion piece about Lochte, and in an open forum, people can express their opinions.

But, by all means — continue to surround yourself in the echo-chamber you admit to feeling so comfortable in. It’s not like there wasn’t a published study about the effects:

http://www.pnas.org/content/113/3/554.abstract

“ Users tend to aggregate in communities of interest, which causes reinforcement and fosters confirmation bias, segregation, and polarization. This comes at the expense of the quality of the information and leads to proliferation of biased narratives fomented by unsubstantiated rumors, mistrust, and paranoia.”