It has been proposed that GMOs or Genetically Modified Organisms could be utilized in rehabilitating biodiversity in ruined ecosystems. Although they may have their advantages, potential hazards are also at large.

Benefits:

1) Restoration: GMOs can further restore native species through increasing disease and environmental stress resilience.
2) Enhanced Resilience: It can enhance ecosystem resilience by introducing pest- and environment-resistant species.
3) Sustainable Agriculture: GMOs improve soil health by reducing the level of chemical inputs, indirectly supporting biodiversity.
4) Ecosystem Rehabilitation: GMOs can rehabilitate ecosystems because they are able to thrive in polluted or nutrient-poor environments, thereby contributing to ecological balance.

Risks:

1) Cross-Contamination: Interbreeding of GMOs with wild species may lead to unintended genetic changes and affect natural ecosystems.
2) Displacement: It is also possible that GMOs will push out native species by surviving better, therefore leading them to displacement or extinction and creating a loss in local biodiversity.
3) Ecological Disruption: Long-term effects of GMOs on ecosystems are opaque, potentially leading to disruption in food chains and ecosystem dynamics.
4) Corporate Dependence: Using patented GMO technologies can create corporal dependence, thus undermining local autonomy and marginalizing traditional biodiversity conservation practices.

Conclusion:

GMOs present opportunities and challenges for biodiversity restoration, thus requiring careful regulation through inclusive decision-making to weigh the benefits against risks.