That's a gross over-simplification of wealth accrual. Hyper-concentration of wealth will most certainly prevent new entrants from entering the coveted class of the 1500 worldwide billionaires.
Regardless of desires to be wealthy, inequality has a lot more to do with inherited wealth, not the ability to be lucky as an entrepreneur. There are plenty of billionaires (and millionaires, etc) who did nothing but enter the world with the correct surname.
> We have hyper-concentration of wealth now. Yet there are new entrants entering billionaire class every year.
Your proof? Most of the 'new entrants' actually have quite a wealth of already accrued money. For example, Jeff Bezos had a loan from their parents for 300k, which is equivalent to for 15 people's yearly salary
The market system is a competition, so by definition everyone is (at least potentially) trying to stop you from achieving wealth. Just ask anyone who started a business, for example. Saying that the only obstacle is in the individual is, at a minimum, disingenuous.
And that's assuming a hypothetical perfect market. The real world has monopolies, rent-seeking and other obstacles that make it harder for new contenders to enter a market.
Regardless of desires to be wealthy, inequality has a lot more to do with inherited wealth, not the ability to be lucky as an entrepreneur. There are plenty of billionaires (and millionaires, etc) who did nothing but enter the world with the correct surname.