Hahahahahaha.
That's a lot of words dedicated to the age old "Killing off a main character to establish a villain". As he pointed out, Vader didn't have to do that to be a powerful villain. He was a stand in leader for what amounted to a Nazi regime (And they doubled that in the new one), who throttled people, killed without a thought, and destroyed planets.
Ren follows this beat for beat. The openning is just like ANH (Half of the story is basically a retelling of the original), we've got a new Death Star, he tortures, personally, and he even steals Vader's look and presence. He's basically a Darth Vader cosplayer.
Han's death is basically in place of Kenobi's. It fits in a similar point, and comes late in the film. If the aim was to establish Ren as a villain, they utterly failed, the movie was near done by that point. It simply raises the stakes, and shows that they're willing to kill off loved characters from the prequels, which you kinda expected.
More ripping off of the originals, Rey leaves for a mystery planet to be trained. Luke is now halfway between Kenobi and Yoda, and has good reason to not want to train her, like Yoda did him.
And anyone who knows the history of Star Wars knows that Harrison Ford thought Solo had finished his arc, that there wasn't much to do with his character, and thought he should be killed off in Empire, which is one of the reasons he ended up in carbonite.
I loved the film, I sat there with a massive smile on my face the entire time, but it blatantly rips off Star Wars/A New Hope, beat for beat, with a few twists, a few bits stolen from Empire, and this is just another bit of that. Which is a shame, because there is some really nice homages and fanservice to the originals, which would be a lot more endearing in a new story. It's really well done, but it's not original at all, it's hardly written, the thing writes itself.
Still, I loved it to death, and they did do a good job at basically topping everything from the original, so I'd probably rather rewatch it than ANH.