I am not sure how changing how we refer to cohorts of people would do that.
Aside from that, I have no idea what you mean by "all people who were born, depending on who you ask, between 1946 and 1964, steal from people who were born after them"
That cannot be true. I am not sure anyone agrees with that broad of a statement, yet, it is repeated often.
Instead you could say, "People in the US who gathered assets before 1970 and are still alive today had a greater economic advantage than those who were born in 1985 and gathered assets before 2008".
At least then it would be easy for someone to know what you are actually talking about, and to not be dismissive of absurd claims.