It is urgently needed to break up all the monopolies and go back to healthy competition.
Many problems that we see in society today come from power accumulation in a few hands. The economy is becoming an authoritarian power.
Kill monopolies and growth will come back in full force. People is not out of ideas, it is just that companies do not care anymore because they have their market share assured.
Well, no. Monopolising a market with the economy, which is a tiny fraction of all decision-making power, is not authoritarian.
The main thing to ask is: are there high barriers to entry for new players? If not, then competition will arise when it needs to. If there are, then we have a problem. If there are, and they're government/state regulations, then we have a common problem :)
It is an inherit property of capitalism that it works towards this goal. There are forms of capitalism that exert more regulatory influence to help prevent this, but the way capitalism works is that it constantly tries to erode regulation and trend towards monopolies. We see this constantly and nonstop in real life.