Yes, well. They're also the generation that gets told they should work their way through college instead of taking out loans (by people who did so when tuition was lower, or even zero, and the minimum wage had kept up with inflation), should buy a house (when house prices have shot up massively compared to income), should get a job by reading the classifieds and then work their way up (by people who did that when it was still possible), should shut up about wanting health care (by people who get free Medicare), etc.
I don't actually know any Millennials who thought they deserved a house at 21. Most I know are pushing 40 and assuming they'll be stuck renting forever.
Me, I'm GenX. We don't get insulted much because everyone forgets we exit.