It's still art. It's just that you think it's bad art so you want to strip it of it's association with the word 'art'. Whether someone makes a bowl of noodles or paints the Sistine Chapel - it's art to somebody (either to the artist or to a viewer).
If Michelangelo had told you that his work was 'not art' would you argue with him and tell him it was? If yes, why? Who has the right to define it as such?
If you would concede with him, why? Would you let him strip his work of the association with art because that's his prerogative? Why?
I personally wouldn't place a high creative or skill value on the bowl of noodles but I can't deny that it's art if the creator tells me it's their art. It's their art, likewise, just because I don't like when it rains doesn't mean that it's not raining. You can't deny the existence of something being the case just because it offends you or you would rather it wasn't the case.
I personally believe everything is art and we all have different preferences. Just as everything we see has colour but we all see things in slightly different hues. For example, two people embracing on a platform at a train station - just a regular event? To a photographer that is art. I think the way you dress is art, the way you talk, your handwriting, the way you walk, your gestures etc. It's all about perspective and what you value highly. It's never about the work itself. The work itself is just a means to make you think, to make you feel something - and in those two cases it's obviously worked on you. It is art. You just don't like it.
If you asked those artists of the pieces you've posted what each of those pieces represents or means to them, I'm almost certain that they have already written an essay on it (either on paper or mentally). To even have your work displayed in one of those settings you have to explain you work and your inspiration - that itself is an art form.
I think it's very easy to be completely dismissive of those types of works that seems as if 'anyone could do that' but a lot of the people who created those works have a huge body of work and are highly intelligent people .