If you can stay focused on the question, with no side rants, I ask you : Why veto stem cell research again?

I agree with you. I'm pro-life as well, but I do support stem cell research. This isn't the insanity of a George Tiller or some partial-birth abortionist we're talking about here. We're not arguing as to whether or not you can murder a fully-developed child. We're talking about a petri dish of cells with the potential to save countless lives.