Why do Muslims slaughter the animals in the way may not be approved by others

The Islamic method of slaughtering animals, known as Zabiha has been the object of much criticism from a large number of people. One may consider the following points, which prove that the Zabiha method is not only humane but also scientifically the best:
1. Islamic method of slaughtering animal
The Islamic mode of slaughtering an animal requires the following conditions to be met:
a. Animal should be slaughtered with sharp object (knife) and in a fast way so that the pain of slaughter is minimized.
b. Cut wind pipe, throat and vessels of neck Zabiha is an Arabic word which means ‘slaughtered’. The ‘slaughtering’ is to be done by cutting the throat, windpipe and the blood vessels in the neck causing the animal’s death without cutting the spinal cord.
c. Blood should be drained the blood has to be drained completely before the head is removed. The purpose is to drain out most of the blood which would serve as a good culture medium for micro organisms. The spinal cord must not be cut because the nerve fibers to the heart could be damaged during the process causing cardiac arrest, stagnating the blood in the blood vessels.
2. Blood is a good medium for germs and bacteria
Blood is a good media of germs, bacteria, toxins, etc. Therefore the Muslim way of slaughtering is more hygienic as most of the blood containing germs, bacteria, toxins, etc. that are the cause of several diseases are eliminated.
3. Meat remains fresh for a longer time
Meat slaughtered by Islamic way remains fresh for a longer time due to deficiency of blood in the meat as compared to other methods of slaughtering.
4. Animal does not feel pain
The swift cutting of vessels of the neck disconnects the flow of blood to the nerve of the brain responsible for pain. Thus the animal does not feel pain. While dying, the animal struggles, writhers, shakes and kicks, not due to pain, but due to the contraction and relaxation of the muscles deficient in blood and due to the flow of blood out of the body.

Kafir’ is derived from the word ‘kufr’, which means to conceal or to reject.
In Islamic terminology, ‘Kafir’ means one who conceals or rejects the truth of Islam
and a person who rejects Islam is in English called a ‘non-Muslim’

Islam prescribes a system of Zakat (obligatory annual charity)

Islamic law prescribes that every person who has a saving that exceeds the nisab level
i.e. more than 85 grams of gold, should give 2.5% of that saving every lunar year in charity

If every rich person in the world gave Zakat sincerely,
poverty will be eradicated from this world. Not a single human being would die of hunger