That would be true if we were talking about the 1800s, ranges, and cattle drives. It's not done like that anymore. Technology has allowed advances in feed that do just the opposite of what you state. Try not to be an idiot before accusing someone else of being one.
A majority of Hindus would eat beef if they would get a safe and clean enough supply of beef...The main problem is that the refrigeration facilities are non existent or very costly....Electrical power is unreliable....So meat is better consumed withinn hours of slaughter...That explains the small size of that industry....
And even in case of non vegeterian diet sea food, mutton, pork and poultry are much cheaper and easier to produce as compared to beef.