I even see it here on DU quite often. Other working people are not your enemy, even if those other working people are making more a lot money than you. People making $50K vilify workers making $75K. People making $100K vilify working people making $150K. I've got news for you, some engineer making $150K a year is just a working stiff too, they are not the enemy, they have to budget and save like anyone else. $150K a year buys you what $50K did in 1985, it's a basic middle class lifestyle, so why are we targeting people for scorn who were able to keep a basic middle class life style through 40 years of Reaganomics? $150K should be what most workers are making.
Working people are pitted against each other and they enthusiastically attack each other when one is getting anything they aren't getting.
It's most pronounced in minimum wage fights. It's not the rich leading the charge against raising the minimum wage, it's working people, people making $22 an hour at a factory who don't think other workers should be making $15 an hour for menial work.