Congratulations, you're the type of person Marcel Duchamp was making fun of in 1917. 108 years later, the stance you're defending has been so comprehensively trashed by the art community that anything I could say about it has been said a thousand times already.
If by "art community" you mean people who make "art" like that, the only thing they have succeeded in is convincing most of the rest of us that their opinion on what is and isn't art is irrelevant.
Which is to say, it's not that I don't think it's art. It's that most people would agree with me that it isn't art, and what the word means in colloquial speech is defined by popular consensus, not by what a bunch of snobs decide it means.
