Cartoonists are good at finding the flaws in the current system but not really finding ways to fix them.

So looking for some more reasonable ideas to address his concerns: There are already limits on the kinds of investments low net worth individuals can make and quite possible some for of useary law limiting interest to ~20 - 30% which would cut down how much credit people can get and reduce there payments at the same time. A few changes to how people can invest their 401k's so they need some reasonable P/E and diversification if they have less than say 200k and are over 55 might not be a bad idea.

I think most of what he is complaining would be addressed with those changes and something like them might even become law but we would still have capitalism. Because capitalism is about having markets determine price which would still happen based on the actions of people with more money.

Furthermore, what were you expecting from a guy who defended Intelligent Design not so long ago?

Granted, Scott Adams does have an Economics degree and an MBA, but it is much more convincing (and productive) to attack his arguments rather than his qualifications or credentials.