This is not a big deal. Halal and "Kosher" methods of slaughter are essentially the same, a humane way to slaughter animals. Genuine Halal or Kosher stamps on meat simply mean that you are getting good meat, IMO. If you are not Muslim and are not Jewish, just ignore the religious part of the process because it is not relevant to your dinner.
OH No, in order to be HALAL, it IS sacrificed to the false god, Allah, it LITERALLY IS meat sacrificed to idols!
But to a Muslim, it's a waste of good meat because you (a member of Dar al-Harb, a dhimmi, an unclean infidel, a descendant of apes and pigs, an unbeliever unwilling to submit to the will of Allah, etc.) are buying it and eating it.