Did you not watch the film or get the point?
If you had then you would realise that it does 'invalidate' everything else, merely because the time line has been quite substantially changed by the events in this film.
Im not sorry im a die hard fan although i found some stories better than others, but i just think its a stupid premise on which to set one film by rubbishing its fan base and history, thats 'patently absurd'.
I think the best solution is what has already been suggested and that was to use a different ship and crew.
What the hell are you on about with regarRAB to Voyager?
I think you have missed to point with that and mixed it up with what im saying about the new film. When Janeway was 'medderling' with time lines it was 'future' events for the crew and the viewers she was interfering with, future events that we have not seen nor had a series written about, thats the fundemental difference.
I didnt say i didnt 'like' it i said i felt cheated by the premise of the plot. It may be just a movie to you but you cant deny that star trek has an historical place in the 20th century of tv and film culture, which has now been totally rubbished.