Possibly the worst movie I have ever seen

Sorry but the recent German film The Strange Little Cat is possibly the worst film I have ever seen (forgive me, I could watch only 30 minutes of this film that at least had the blessing of being short). I know there are many horrible slasher films, stupid war movies, sophomoric comedies, cheap horror movies, all of which are no doubt terrible but their ambitions are equally low, whereas this film aspires to be some kind of artistic statement, a slice of reality: in effect, it's like a reality show about a family of absolutely no interest to anyone, without a dash of humor or the shred of a plot of conflict. Shot almost entirely within a small apartment (in Berlin, apparently), almost all from the level of, say, a table top, we see the family squabble a bit over breakfast, various family members (not well identified or introduced) arrive, as they are apparently preparing for some sort of family dinner in the evening, a brother helps repair a broken washing machine, they take some bottles out for recycling, make coffee. They talk in inanities: the mother tells of sitting in a movie theater and the man next to her nudges against her foot and she can't (or won't) move her foot away - how odd, and how dull, without further development or reaction; a daughter gives  along account of walking on a path and tossing away orange peels, which all land white-side-up - why? Who cares? Worse, the family members are kind of mean people, though not in a dramatic or intriguing way: the sister throws a ball at a kid outside and hits him; the mom meanly chastises youngest child for neglecting to feed the sparrows (How many sparrows will die because of you?). And if this isn't dull enough, we watch a cat occasionally pass through the scene - unless the mother or sister is intentionally stepping on it or pushing it off the table. What is the point of this? Could any viewer possibly care about these people or what happens to them over the course of 90 minutes, which could feel like a lifetime?