Lets take out of the conversation how many feel about Dubai in general as this could happen in many places.
I understand the instinct to want to save every life, especially our pets, they are part of our homes and lives and much loved.
But in real crisis situations, people are often forced to make impossible decisions very quickly. Flee the region or stay and potentially, directly face the horror of war.
Sadly, animals do become expendable when the priority has to be getting people and possibly children to safety.
If someone can take their pets with them, that is great. But if they can’t, that doesn’t make them cruel or uncaring, it means they’re doing what they must due to significant risks for their safety. I can imagine many tears have been shed over those pets that had to be left behind as options were limited.
Judging those choices only comes from a place of privilege or from never having experienced the chaos of a true emergency. I judge you OP, and your unrealistic expectations of others, more than them.