An interesting point, if this was/is the case then what are the new rules ? Everytime the market tanks, govs magic money printers go into overtime and bailouts for everyone ? Doesn't this mean there's no longer no risk in investing and everyone is a winner because the "value" can only ever go up ?
Interesting you talk about betting against capitalism, surely the above mean capitalism is dead and we're in some new form of system, a hybrid of capitalism and socialism, capitalism when markets rise but flip the switch to socialism when things turn bad ?
The government's role isn't to prop up investment markets as that would seriously undermine them, but in extreme events such as 2008 or this, it is justifiable to get the old inkjets down at the Bank of England fired up. There will always be risk - you can't account for a company going belly up due to chronic mismanagement, changing consumer tastes or criminal activity, for example. But if you're holding a diversified portfolio that is adequately managed over a long enough time horizon, then those risks are much lower than for an investor trying to pick short-term wins by picking stocks.
I call it capitalism for the sake of convenience and familiarity, but I think you're absolutely spot on pointing out that it bears more resemblance to a more hybrid style system. And when you look at inflation since 2008 and compare it to historically 'normal' levels of inflation going back to say 1980*, you're looking at an average of around 2.5% per annum compared to over 4% per annum and all the while we now have a generation of people who have never experienced interest rates above 5%. With all that easy money being pumped around the system, inflation has actually come down which is at odds with accepted classic economics - if the supply of money increases at a greater rate than a country's output, it causes inflationary pressure. Yet the UK's GDP has never recovered to its 2007 peak.
*I used from 1980 as the extreme levels of inflation in the 1970s would've unfairly skewed the average and the 1980s are a far more comparable period given the explosion in financial services and consumer investing.