Jeez yeah some people are taking the words too seriously, but I totally get it. Pop punk is full of the nice guy finishes last lyrics, and I guess you could say that’s something the Descendants helped established m, so it’s just more evidence that they’re innovators really.
Yeah, kudos to the Descendents for blazing the trail for many subsequent years of misogynistic incel neck beard cringe! Let’s everyone raise a glass to some real pioneers! 
At one point there was no such thing as rap music. Then suddenly there was, and it has influenced so many aspects of American and even world culture. I think it’s possible that if rap music suddenly disappeared and everything in our culture it laid its fingers on vanished with it, you’d probably take for granted a lot of what would be gone. Some of it is so ingrained into the fabric of our culture’s DNA that it goes unseen, because it’s so ubiquitous.
Why do I bring up rap music? Well believe it or not there are still people who hate rap and still don’t consider it real music. Can you believe that? In 2020!! Well, it’s true, shocking as it may be. And so it doesn’t matter to these people that this new thing came along and changed absolutely everything, because in their view everything else it spawned was garbage.
And that seems to be exactly your view on the Desendants. Yeah you may hate poppunk, but how many punk songs have there been about being a nerd, not getting the girl, school, stupid crushes (and yes misogyny, not sure why you want to single out their brand of misogyny which I don’t think is as extreme as contemporary incel culture, and if you’re generally bothered by misogyny in punk there are bigger, more obvious targets, but that’s fine because it needs to be said anyway)

Where did that begin? Yeah maybe Johnathan Richman was the first, first, but in the punk/hardcore context, Desendants were pretty influential in creating all that. And it’s an aesthetic that at this point has gone far beyond punk. Maybe what it spawned in some cases is toxic and vile, but that would be like blaming the transgressiveness of Sex Pistols for the transgressiveness of Trump (and Lydon is actually a Trump fan).
And also I have to ask. What were you like in high school? Were you the jock stuffing kids into their lockers? Were you a bully? Were you getting laid all the time? I was not getting laid a lot in high school. I didn’t get my first real girlfriend until I was 17. Before that I’d only had a few sexual encounters with guys (some who were a bit too old in hindsight). Maybe I was considered a burnout because I was pretty advanced in my drug experimenting, but honestly, most people probably thought I was invisible and didn’t even consider high school me. The fact is I didn’t have a lot of friends and I simply couldn’t go out every weekend. It was miserable in different ways, but still miserable. And yes, sometimes exciting.
My high school, nay, life experience was not like what the Desendants sing about, but I respect them for their point of view. Same way I don’t care about spooky monsters and b-movies but still can appreciate the Misfits (also misogynists, I know). Or how I know nothing about politics but can still get into Crass. They all had their own original and impactful visions of the world, whether or not I like it.
And also in a very general sense, I think the abstract idea of not getting the girl, or whatever, has some universal appeal even if you can’t relate to the specific story of the song.