I'll give you a short answer.
I haven't listened to all (critically) acclaimed music artists, but out of those I've heard I liked most of them. I can't be a fan of every acclaimed artist, but I RESPECT them.
For example David Bowie is a generally respected music artist, while Justin Bieber is NOT and he will never be. That makes Bowie (objectively) much GREATER than Bieber. In general 'real' music fans respect Bowie for a reason, although some of those people are not his fans and they don't have to be. Those same people disrespect Bieber because they recognized there is no ART and QUALITY in his music, just COMMERCE for very lame entertainment.
Case closed.
Seriously, bro, you're getting ridiculous. I've stuck up for you to a degree in the past, but if you're saying "I'm not a real music fan" because I don't disrespect Justin Bieber, well, you've lost what little credibility you might have had with me.
You CLEARLY have no idea what you're talking about.
Name a "respected" musician, and I've seen him: Clapton, more than once. Crimson, about four times. Yes, too many times to count. Blackmore three times, Page twice, Plant twice, Paul Rodgers, Schenker, Gilmour twice, Elton John three times, Billy Joel like six or seven, the Dead three times, McCartney once... but guess what? I've seen the Jonas Brothers twice, Harry Styles once, and Miley Cyrus, too. Harry Styles was one of the best concerts I've ever seen; I was mid-level at the Madison Square Garden, sold out, and the arena was shaking. Literally, SHAKING. I've seen Kiss and Temple Of The Dog there, and only Kiss - a homecoming show on the first leg of their reunion tour - was close to that.
Music is music, and if it moves you, it moves you. All your words don't amount to a pile of dog shit in the face of that.