I can kind of agree with what you're saying
but still meh. Most of these comparisons hes talking about don't work very well. It's obvious this guy only watches ecchi shit because he treats all of anime like it's only ecchi. He mentions sex comedies, yet explicit sex in anime hasn't been around since the 80s and even the explicit ones were stuff like Wicked City, not comedies. Nowadays the only anime comparable to what hes talking about is ecchi where the most you get is implications and some boobs if youre lucky. Even shonen doesn't go beyond some innuendos or panty shots at most. And I'd say the majority of modern service (that isn't ecchi) is more comparable to stuff before the 80s. I can remember panty shots in 70s stuff like Lupin, Galaxy Express, Gundam, and Ashita no Joe to name some. Anime has always had that light, gratuitous side that isn't ecchi or sex comedy stuff. If anything, the 80s was just a phase of that side and modern ecchi may be inspired by that, but definitely not anime as a whole, which has always been gratuitous (Tezuka was into animal girls ffs). Then there's the examples he provides to support his claims. First, Kimagure Orange Road. Well even that doesn't match because Madoka (the character hes talking about) is a huge anomaly as an anime love interest. She is nothing like your typical modern day anime love interest and so to say shes proof of the connection is negligent because she doesn't even match the typical anime love interest. His second example is how much cyberpunk anime is based off of Streets of Fire. Again, anime has been doing scifi since before B movies (Astro Boy for example). As well as this, cyberpunk anime doesn't exist anymore nor many remnants of it, that could just as easily be remnants of the pre 80s scifi boom. But even in the 80s his claims don't hold very well. You could use pretty much any Western scifi movie as a comparison to 80s anime and, in this case, there exist much better comparisons that don't fit the B movie criteria. For example, Mad Max 2, Blade Runner, 2001 Space Odyssey, etc.. Is it more likely that cyberpunk was inspired by Blade Runner (1981) or Streets of Fire (1984)? Well if you cherrypick Megazone 23 and Bubblegum Crisis as the whole of 80s anime (which he does) it's known that Streets of Fire inspired these two, but even these and many more were more inspired by Blade Runner. It's not a stretch to say that every cyberpunk anime, either set in a apocalypse or in a futuristic city, is inspired by Blade Runner or Mad Max. Finally he mentions power suits and StarShip Troopers, which is just him cherrypicking Bubblegum Crisis again. Well, Super Sentai has been around longer than Starship Troopers and after the 80s I can't even think of a real robot suits series since. Finally he mentions all his generalizations which only really apply to ecchi and his little gripe on "normalfags" which doesn't even make sense. No one says ecchi or moe shit is "meaningful art" they say stuff like Lain is meaningful art and pretty much none of his criteria matches with stuff like Lain.
No offense, but at that point it kind of becomes pointless to make the comparison because of how "no shit" that comparison is. Like even my friend, who'd never seen anything pre 2000, picked up on Kenshiro being inspired by Bruce Lee when I showed him FotNS.