Definitely hang up. Interesting opening instantly undercut by annoying flashy YouTube editing.
Just awful. Nonsensical, horribly unlikable characters continually make illogical decisions across space that never seems to make any sort of sense. I love slasher films and can normally overlook a lot of this stuff, but Red Christmas just doesn't seem to get anything right. Attempts to emulate classic holiday slasher films, Fulci and Argento feel sloppy... especially amongst multiple (yes, multiple) poorly written abortion sub-plots. Dee Wallace at least doesn't seem to be phoning it in, though the screenplay does her absolutely no favors.