While I am am Ashkenazi, if someone identifies as a Mizrahi, you do not have the right to call them an "Arab Jew". You should always use the term that they use for self-identification.
In addition, I did not ask to be put on these groups, nor do I wish to engage with you any further.
If someone identifies as Sephardi or Mizrahi and someone else "re-classifies them" "Arab Jew", this is a form of erasure and possibly harassment.