That is not what this debate is about. The debate is about whether we know that the point of focus can be described as massive GHG when compared in proportion

That is not what this debate is about. The debate is about whether we know that the point of focus can be described as massive GHG when compared in proportion to other emitters. How much is the plant actually going to emit? Is the number the largest because the field is dominated by many many smaller things that cumulatively sum to a figure so large that if any one value (even if the largest) is removed, it makes no meaningful difference. What happens to the fuel if they don't use it? Does it get used by someone else who would otherwise had used renewables. I don't think it is unreasonable to have the relevant information to hand before making a decision. I might make the same decision as you have already done. I'd just like it to be based on actual information that I have.