I'm not suggesting that anyone should spend even a minute with music they don't like - there's too much good stuff out there - but my daughter and I have a rule: if one of us asks the other to listen to a song, we commit to it. As a result, she's a huge Fleetwood Mac, Queen, Kiss and Beatles fan, and I'm proud to say that her "80's playlist" would fit right in with most of the people here, judging by the various threads I read/participate in.
In that process, I've committed to listening to Ed Sheeran (didn't do anything for me), Taylor Swift (she's like U2; what I like I REALLY like, but there's a lot I could skip), One Direction (more on this in a minute) and Harry Styles (who I like, and have seen live once and will go again).
And here's the point: I can play you five songs from 1D and you'd all be (rightly) like "wow, does that suck hard". Banal wouldn't be the word. Here's the deal, though: they have five albums, and they are not puppets or Milli Vanilli. They all wanted to be musicians as well as popstars, and while you can say they "sold out", every album has a couple songs buried deep that aren't sugary pap. "Once In A Lifetime" makes me cry almost every time I hear it. Beautiful song. I'm not saying everyone has to love every band - I don't - but I think reserving judgment on one song, or even just the radio hits might sometimes not give the full picture. There are well-respected rock and pop and prog acts that have sold out just as badly as some of these pop stars, they just didn't get the pot of gold at the end of the tunnel.