I am always very cynical about people who object to halal meat on the grounds of animal welfare for a number of reasons. The first reason is why is halal meat the first thing these people pick on, when factory farming in this country is as unethical as it is?
Who are "these people"? The "animal rights weirdos" Q-man disparagingly refers to have been pretty vociferous over the years on the subject of factory farming. So I don't think it is correct that halal meat is being particularly "picked on" by genuine animal welfarists.
Halal slaughter is nowhere near the biggest animal welfare issue in the farming industry. I have read on the bnp website about the cruelty of halal slaughter. The BNP do not give a shit about animal cruelty, they just need as many sticks they can get their hands on to beat jonny foreigner with.
I am sure the BNP have their own agenda and are taking advantage of the main UK political parties' failure to address non-Muslim UK citizens'
legitimate concerns about the spread of Islam and related problems in their country - as well as trying to pick up some of the animal welfarist votes. This does not make everything they say wrong though.
Also, if you look at history, ritual slaughter was banned in 16th century spain, it was banned in nazi germany, and it was banned in Italy under Mussolini. In all three of these cases, the ban was not due to any concern for animal welfare but because of anti semitism.
And therefore objections of non-Muslim parents to their kids having halal meat put in their school dinners will lead to....

?
And thirdly, most halal meat these days is stunned anyway - what is the big deal?
As I have already pointed out, for those who have lobbied for halal meat on the school menu the "big deal" is that they believe that Allah will burn their kids in hell forever if they eat non-ritually-slaughtered animal flesh. How daft is that? The "big deal" for non-Muslim parents is that - for a variety of reasons - they don't want their kids to have the food they eat Islamized. Why can't you just accept that?