You are mixing up a few things, but I do appreciate the article.
Yes, the photo you showed is a good example of the nasty nature that exists within mankind (particularly some males are completely extreme in their thinking how they are absolutely right in whatever they are doing).
Yet capitalism needs better explaining.
Capitalism is like a horse, and it is indeed the best working animal there is. Yet it truly matters if there is a tiny horse jockey sitting on top of the horse, or if there is a mature person sitting on top of the horse.
The tiny horse jockey, let's say a kid of six years old, does not control the horse well at all. The horse can do whatever it wants to do.
The mature horse jockey guides the horse to do what is needed and to not do what is not needed.
In the USA and the UK, the horse jockeys are tiny. Just look at the two-party systems in these nations and you see the enormous wealth at the top and the intense poverty at the bottom. The horse goes to its favorite spots and not to any of the other spots that can really use some attention. The voters are limited in their choices and the representatives represent at best the majority of the voters, but not all voters. The horse jockey is small.
In Sweden, the Netherlands and Spain, the government is mature. The voters have full access to being represented. All voters are represented. The horse jockey is mature.
Human nature can be horrible, especially when left unchecked.
But we must not forget what our politicians like us to forget and not mention to one another: Our representatives should be representative of all of us. In the USA and the UK, the representatives are not representative of all voters. The majority occupies all seats, not just the majority of the seats.
Thomas Jefferson devised a voting system of proportional voting. We should have that in place.
It is wrong that Sweden has We The People indeed and the United States does not have what it says it has. We lie too much (and don't call it a lie, but rather call it out as spin).