Well there you go. 50years pro, you probably got no punk rock stories to tell. Your time zone suggests your reggae might not be all that (coz I make assumptions too). We already established you are not all up in hip hop and electronica. And statistically speaking you almost certainly know very little about gamelan or throat music. None of which means you wouldn't have a whole lot you could teach me.
My point being that your experience, vast as it may be, seems to have left you with little understanding of large swathes of modern music. (And possibly Asian folk music as well.) Which is why some here would reduce your reasons for disliking it to it simply being outside your comfort zone.
Just for the record, one of the bands I toured with covered Devo, Bowie, Ted Nugent, Peter Tosh, Bob Marley, and Sex Pistols....and covered them well and authentically. I'm also acquainted with Javanese Gamelan music, Tibetan throat singing and other polyphonic vocal techniques, ragas, and music of many other cultures....and none of those I just mentioned or that you mentioned rely on programming, overdubbing, and sequencing by computers.
Your mentioning of me being "not all up in hip hop and electronica" may be accurate (and about the only accurate assumption you made about me) if "not all up" means I don't like most of it. If it means I haven't heard it, it would be inaccurate. I have heard some hip hop with some pretty hip rhythmic phrasing and creativity, and even some positive messages and thoughtul prose, but I need melody and harmonic progression and tension to hold my interest, and in the vast majority of cases, that's not there in hip hop. Just as human interaction and spontaneous musical sensitivity is not there in the vast majority of electronic music. I say that having listened to Morton Subotnik's "Silver Apples on the Moon" when it was released, Walter/Wendy Carlos' "Switched-on Bach," Dick Hyman's "The Age of Electronicus," and being involved in synthesis from the early Arp and MiniMoog days (owned an Arp Odyssey, MicroMoog, PolyMoog, Roland Juno, Korg Poly Six, Yamaha DX7, TX7, CS1x, and a host of weighted action sampled piano controllers through the years) through the development of MIDI, sequencers, samplers, and the continued devolution into totally computer generated "trance," "club," and other genres of electronica
Yes, you made a lot of assumptions. It's not always a question of being "out of one's comfort zone" or not being familiar enough with certain genres. Sometimes it IS about disliking it for very concrete reasons, some personal, some intellectual, and some moral. We all like what we like, and dislike what we like, for our own reasons.