

When most people refer to capitalism, they mean free market or laissez-faire capitalism. Many (most?) of the issues you mentioned require government to step in to occur. For example:
- trusts - government structure to protect wealth
- oligopoly - failure of government to prevent collusion (price fixing and whatnot are expressly anti-competitive)
- regulatory capture - government must be complicit since regulations are typically a government thing
I think government has a place in protecting the free market, but it needs to be restrained so it doesn’t get manipulated into destroying the free market. For example, a regulation could protect consumers, but it could also raise the barrier to entry and prevent competition from correcting the underlying problem.
A lot of the issues stem from corporate welfare, where wealthy people are able to manipulate corporate structures to build their own wealth and protect themselves from liability. I think it’s largely those liability protections that encourage anti-competitive behavior. End the protections and courts can meaningfully punish corporations when they break the law.
I don’t think that’s necessarily true. If the market is sufficiently free, you only need a handful of experts to look past the BS and inform the public. In the past, we called those people journalists, and they would hold bad actors to task.
The issue seems to be that government has given in to moneyed interests and allowed them to shut down critics. If we had actual consequences, like jail time or confiscation of personal wealth for illegal behaviour, I think it would self-correct.