Sheikh, if non-muslims do not believe and they worship others besides Allah, why does Allah allow some of them to have nice cars, good food, big houses and nice clothes? Plus, Allah says that anyone who stays away from his remembrance will have a miserable life. Are they happy in their lives?
Nobody has the right to question Allah!
Allah tests everyone differently, for some by giving the luxurious life and for some depriving from even the basics. For example, your test might be in objecting to what you see as you are noting in your email!
The prophet salla Allahu alaihi wa sallam said that this life is the paradise of disbelievers and the prison of Muslims!