The problem with this monist idealism is that reality is as much a binary. The yin and yang of both sides of the coin.
Our search is a form of reductionism, but it’s context which gives any nugget of truth meaning. Nodes and networks. Even this physical “matter” is more a polarity of positive and negative charge, rather than “atoms.”
Consequently we end up with various ridiculous confabulations, often equating the ideal with the absolute. Both are reductionist, but one is of our sensory perceptions and the other is where everything sums out, the zero between positive and negative.
The opposite of the absolute is the infinite, where everything fades out.
We fluctuate somewhere inbetween.