Firstly, I didn't post any question. I posted the link to the article that attempts to answer the question of how to break out of one's bubble or echo chamber. I think it's a good read and has good points.
Secondly, as anti-Trump as this place can be, there are a few posters that actually attempt to engage and offer viewpoints from the other side. So while you seem to continually argue that this place has no balance in that respect, I'm with many others that there is some balance here due to the fact that the quality a few of Pro-Trump posters offer is helpful to engage with here.
I think a big reason why it may seem so unbalanced here is that I find most of the anti-Trump folks try to legitimately engage in discussions and many of the pro-Trump folks are here to rile up and "own the libs" or troll. So you see longer, more engaging posts from far more of those against him than those for him. But even with that in mind, there is still quality from those few that genuinely attempt to interact. And what I, and I'm sure others get from that, provides a balance here that you can't get from most other places. I essentially never engage in politics anywhere else but here for that very reason. And I don't do that here to get confirmation from my "echo chamber" because I can get that from my FB feed if I that was all I was looking for. I sometimes ask myself why I bother posting some of that stuff here but I when I can get a quality discussion with a different viewpoint, I feel that I can understand the other side better and try to see where they are coming from.
I think you are being too quick to dismiss that aspect of the community here due to your perception of a huge imbalance of for/against that isn't representative of the country at large.
Finally, when someone genuinely tries to answer the question of who here is Pro-Trump to give an idea of the numbers, I don't understand the slights of accusing him of knowing how others think. He never claimed to do so and was simply posting a list based on the posting history of various members here. Nothing more, nothing less. No one is "trying hard" to prove anything else. It may not be a perfect list, but it's certainly close and wouldn't be difficult to find posts or excerpts from those on the list that demonstrate how they feel about Trump. Unless that is nothing but multiple aliases or folks being completely disingenuous and trolling for fun, his point remains that there are a decent number of posters here that support Trump.
Either way, as bad as the PSF can be at times, there is still some value and I do truly think it offers some opportunities to get out of one's echo chamber despite your repeated posts that we apparently can't recognize that's not possible.