It may be a little hard to stomach, but she is right about social media.
Facebook has made narcissism and self-worship a virtue. Would you have ever taken a film photo of yourself and mailed it to friends? No.
Your friends wouldn't care and would think you are self-absorbed (which may be true).
And there is a weird understanding on FB that has developed between friends. That understadning is, you respond to my selfies and posts about myself, and I'll do the same for you. That may we can both be narcissists without having to be labeled as narcissists.
Twitter is also narcissistic. There is the same weird understanding like with FB. You repsond to MY thoughts and I'll act like I care about yours.
The only problem with Sandra is that she is not articulate and speaks like a low grade moron. If you can get passed her lazy, profane way of speaking, she is right on the money.