If you mean "too much capitalism" as in "too little taxes for the rich, almost complete destruction of unions, too much power for lobbyists", then I think you're right. "Free market", democracy, government spending and unions are all imperfect, but they are IMHO all necessary counterbalances to the sheer power of money for a capitalist system that benefits most of the population.

Instead, for too long the ideology that The Market is perfect and self-regulating and automatically works for the greater good, while Government/taxes/regulations/unions are all evil, has triumphed.

Working to find a good balance is so much more difficult and so much less attractive than believing in a very well narrated oversimplification. But, instead of working in that direction (the good balance), lots of people are opting to believe in even worse oversimplifications - the ones that populists all over the West are spreading. Not an easy situation to fix.