Obviously they don't understand that clothing in some situations is necessary for small dogs.

I would never take Tucker outside in 0° weather without a sweater.
and dogs that live in certain places with a lot of snow NEED booties. Else their paws will get messed up.
I think it's cute. Yes, there are some who go WAY out of control. But I honestly don't see the harm in putting a dress on a girl or a little t-shirt on a boy.
There are WAY more serious problems in the animal world than this, that's all I'm saying.