This may be a question for /r/AskSocialScience; check with the mods there

How do you quantify "cynical and rude"? Are we comparing it to one standard or just their contemporary standard?

Since you're looking for changes in the last few decades, this submission has been removed because it violates our '20-Year Rule'. To discourage off-topic discussions of current events, questions, answers and all other comments must be confined to events that happened 20 years ago or more.