That's unrealistic. Climate models aren't good enough to predict the regional-level consequences of large-scale interventions (not to mention that scientists are people, and they might be averse to creating an international flashpoint).
Realistically, it will create/exacerbate international tensions. The monsoon/desertification will be linked to geoengineering with or without scientific consensus and whether or not they were really caused by geoengineering.
As the climate models improve by incorporating active intervention data it will be possible to decrease adverse consequences.
It's a risky approach, but, when the consequences of climate change will become undeniably bad, some countries/individuals might try.
But, yeah, I agree with you in the end.