"Jew" is a noun. When it is used as an adjective or verb, it is a pejorative and vulgar.
"He once bragged about the Jew lawyer, Cohn, as being an inspiration."
"Then you get the reward of success. People come back to you, he continued. They like the service they get, and they dont ask methey might try to Jew me down on a price, thats fine. You know what? Thats free market as well. -- Oklahoma House Majority Leader Dennis Johnson
"The Jew lobby is buying elections."
All of these are offensive, like your comment that Miller is a "Jew Nazi". While compound nouns do exist, using "Jew" in that way is insulting and offensive. The correct way to write that would have been "Isn't he a Jew
ish Nazi?" While inflammatory, it is grammatically correct and not linguistically pejorative.
"Behind the Aegis is a Jew American." Offensive.
"Behind the Aegis is a Jewish American." Correct.
"Behind the Aegis is an American Jew." Correct.
As a side note, (you didn't do this), "Jew" is
always capitalized, as is "Jewish"....
always!