I would not say rate cuts have been "ineffective". I would rather say only that they have not achieved the desired effect, assuming what's desired is a rebound of the economy.
If you assume, rather, that the goal of rate cuts has been to stall economic collapse until a recovery occurs on its own... then I would say that the cuts have been effective so far, but that their ultimate effectiveness has yet to be proven one way or the other.
Hard work often pays off over time,
but laziness always pays off right now.