First it was low rates mean a bad economy, then it was deflation versus recession
You made two mistakes there. First I said the central bank pushes down rates because it believes there is an economic problem. If the rates are low organically, that is a different matter. There are two main reasons for the Fed to push rates unusually low, to fight a recession or deflation. It is not versus anything there. Both reasons would be bad for the economy, but deflation is an empire killer.
now it’s that multiple QE rounds were somehow more necessary than the first.
Again, not exactly what I said. Once you start doing quantitive easing, you must finish it. Doing it halfway, and then pulling out means that it will not be effective later when you try to do it. So do it till it is complete, or do not do it, but never do it halfway.
That’s why I don’t buy the neat partisan framing.
The pathetic part of this is that basic monetary policy used to be bipartisan. Quantitive easing came from the Republicans, and I support it even though I am not a Republican.
And I don’t see how you can say the side effects weren’t real
I did not say that. I am saying the side effects were surprising small considering the huge nature of the solution. A lot of what you point to as "side effects" were actually the original problem.
QE and ZIRP drove asset prices up and forced investors to chase yield.
And that is why the bond market failed... Except the bond market did not fail. So the next question becomes why not?
That’s how we ended up with institutions buying single-family homes
Institutions buy houses because they are undervalued, not overvalued. In America at least, they have proven to be very bad at buying single family houses at a profit.
More renting would be better for the economy. Owning a house means Americans are locked into a local economy, when moving might allow them to be more productive. It locks their money into one kind of investment, that they will have trouble selling when they retire, because they will want to live there. It encourages them to vote against growth, to try to push up their house's value.
markets throwing a fit at the first sign of tapering
Part of the problem with the taper tantrum of 2013 was it was so sudden. With forward guidance, there have not been taper tantrums since then. So it is not an issue at the first sign as you claim.
The taper tantrum was not that bad. The economy continued to grow. Bond rates did not even go to neutral. The worst was that it hurt foreign bond sales... We are not Turkey.