I think one of the first things I saw when it was announced that Disney had bought Lucasfilm was a picture of George Lucas standing next to Jedi Mickey, and I thought 'this is not going to be good.' But I warmed up to the idea hoping, like you, that Disney would handle Star Wars with the same storytelling sensibilities as Pixar. That could have been awesome.
TFA was unoriginal, but I thought it was a fun watch and assumed it was a jumping off point from something comfortable to something different. For me, though, TLJ was just too different. It just ignored too much that had come before to the point of outright disrespect and it completely removed itself from any larger story by doing that. Also, I found it hard to feel tension when the movie starts with a single pilot in a single X-Wing taking on a giant first order ship with comedy that, for me, just felt awkward and flat.
I think your idea for third one could be an interesting watch. Personally I don't care to have real world politics crammed into my escapist fantasy that's traditionally been about black and white, good and evil. Not blatantly, anyway. For me, when the movie suggests that both sides are bad because, deep down, they're both going to war and buying war weapons from the same evil arms dealers, then it's telling me to stop rooting for the good guys and start rooting for the end of war. That just doesn't seem like a good idea for a company that just spent 4 billion dollars on a franchise with the word Wars in the title and who has assured me that I will not live to see the last Star Wars film. I'm not against movies telling me war is bad, but I don't care to hear that the heroes are really bad too.
That said, I think I could put up with a lot of the new directions this film took if this trilogy had any kind of direction to it at all. I mean, everyone brings it up, but no one really holds it against the original trilogy that Luke and Leia switch from potential romantic partners to brother and sister because, despite revealing that trilogy's lack of a specific plan, it doesn't take away from that trilogy's direction. There's all kinds of talk about how TLJ is telling everyone that Star Wars is now for a new generation, or whatever. And that would be fine if that was the direction. But Rian Johnson seems to be the only one making that statement (and perhaps Kathleen Kennedy). I mean, TFA and Rogue One seemed to be all about nostalgia and sticking to the established universe.