It is not acceptable to mistreat children, no matter how disrespectful others may be.
I don't know the complete story because the image is from Google, but this should NEVER be acceptable.
It's also not acceptable to insult children's eyes, which means you should be aware of what you have and who you have around them.
Also, everything is not a "phase." If your child has acquired a new style, such as dressing differently or becoming more involved in other activities, it may not be a phase. But that's all for now. Please keep in mind that I'm not attempting to teach parents how to raise their children, but rather to make them aware of these issues.