You have a neat clean metaphysical theory with crisp edges, open to attack of course but defensible. You have spent a long time developing this to the degree that you identify with it and would feel bereft if it were shown to be mistaken. Apart from that what difference does it make, other than the sense of having solved a standard puzzle? You might imagine that a Realist would place the world in a different context to the Idealist and I suppose there is truth in that, whatever truth is. Should that give rise to a specifically different quality of experience? Could a scientific experiment be devised to test this? I think not. It’s just philosophy after all.