So anyone is free to make any statement they want, and other people have the responsibility to prove the statement wrong?
No, but apparently you think you are free to make any statement you want without any evidence, and other people have the responsibility to prove the statement wrong.
Your current goal-shifted argument has already been blown out of the water through logic but you're still beating the same drum. I'd quote the posts, but you would just ignore it, just like you've ignored several posts I've made that are directly relevant.
As someone else has said - it's time for you to bring some evidence to the table. Everyone else thinks you're wrong, you haven't been able to dispute their logic, and you're wondering why people are acting this way. Yours is the argument that is lacking substance here.
IMO, the only evidence that would aid your argument at this point would be a general study that shows up some anomalies in relevant high-risk pregnancy categories which would conclude that more studies need to be done in those areas, or preferably a study in response to that one which addresses those concerns. Unfortunately for your argument, as I've said before, your query is so vague because saying "people with a higher risk of miscarriage" is like saying "people at higher risk of having headaches", there's a load of entirely unrelated reasons why people might be in that category.
If the person described in the OP had experienced miscarriages due to a particular (positively identified by a medical professional) unusual factor, then perhaps finding studies have been performed with regard to that particular unusual factor and the flu vaccine would be appropriate.
One other thing, did you actually read up on the "National Coalition of Organised Women" (and by "read up" I mean "at least spend a couple of minutes googling them") before posting that crap?
Some interesting reading for you:
http://www.skepdic.com/skeptimedia/skeptimedia117.html