Fair enough. As long as you apply your opinion equally to Muslims and non-Muslims.
I fully admit that animal slaughter and processing is brutal. And as a meat eater, it’s not something I like to think about, which you probably won’t appreciate as I’m sure you feel that we should be fully conscious about what we eat and where it comes from.
I will say that my son suffers with a range of unusual intolerances, for example he has intolerances to fructose, gluten and salicylates. This means that he cannot eat the majority of fruit or vegetables. He’s particularly hypersensitive to anything made from onion, garlic, or onion and garlic powders. These happen to be in a wide variety of processed foods, including vegan products. His diet consists of meat, eggs, cheese, rice, green beans, potatoes and not much else. Whilst I personally will often have meat free days (for health and cost reasons) I cannot stop meat and dairy use entirely. It’s the main part of my son’s diet.
I do however try to purchase meat that has been processed as sustainably as possible. I use farm shops, or look for RSPCA certified produce. I realise that nothing can be guaranteed when eating meat, except that an animal has experienced some suffering to provide us with food, but again, this is a separate conversation to the halal/non halal one.