On this point, I'd tend to agree with Kes, regardless of what they are (a holography device for holograms and a mechatronic device for , humanoïds, robots), they must be respected by all LIVING beings surrounding them, especially if they worked with, in a certain proximity like it was on a vessel... even if the trouble of having to show sociability with non living beings, strictly speaking, is understandably BUT there is a hell of gap between respecting these "beings" and treating them with more favourable consideration/with the greatest possible respect as Picard did with Data and Janeway with the Doctor, especially if it is done at the expense of the others crew members.
-> Sorry to say that but IF human beings deal with more consideration and courtesy holograms & humanoids than their fellow people, then there is a big problem in our society, whatever the countries & century! :-(
In addition, I'd add that if respect it must be, it must be shared from both sides and not being unilateral -> you have to acknowledge that the Doctor was mostly irrespectuous and uneasy with crew members who surrounded him (it was even ironic to see him giving lessons of good manners and sociability to Seven when, when himself forget them most of the time!) ... as his creator, Dr Lewis Zimmerman, besides!
-> Janeway allowed him to exist outside his original program and to become a full crew member, he should consequently make an effort to blend in better into his surroundings, what means, to be himself respectful of others and to stop talking to people like they were dumb..