Is it okay to dislike superficial people?

My brother and sister-in-law are very superficial in that they always need to have/wear brand name things. They have Apple iphones (lol brand of the minions - Samsun is better) and everything is designer brand (Nike, Adidas, Calvin Klein) and the wife's purses (huge monstosities) are also brand-name fortunes. I took their brand-name cheap clothes for my son to the thrift store and bought him some quality USA-made cotton tshirts and pants. T
he 'brand-name' stuff is made in China where there's likely child-labor.

Lol i don't know if that's called being superficial but you have a right to like and dislike whoever you'd like.

  • Why people like iPhones? I can't never get people who like iphones to give a good reason, why? Some say it easy, but a lot have no clue on how to use their own phones. Can someone explain something useful that great about iphone? Everything they think is special other phones have been doing for years.
  • Why do people think that childfree people are immature and selfish? Marriage isn't living outside of yourself for another person? What about taking care of extended family?
  • Why do people dislike Nokias? I have had a Nokia 1020 for over a year now and it is still running better than my iPhone 5s ever did. With a professional 41 mega pixel camera, great storage and fast running programs it exceeds the iPhone six in almost every way, yet people take one look at it and turn up their noses. Why are people so opinionated?
  • Why are basic white girls so superficial and shallow? For those who are not familiar with the stereotype of a "basic white girl": a white girl who wears ugg boots, plays with her iPhone all day, takes lots of self-shots that she posts on Facebook every day and drinks spiced lattes at Starbucks with her friends every Friday. Basic white girls like that only date popular tall white guys who are "really hot". Why do they only care about how tall, white, hot and popular a guy is?