Plenty of people have written/spoke in great detail about this. At this point you aren't actually interested in criticism of Disney's work.

The original trilogy were fun adventure that had really solid special effects for their time, quotable lines, memorable characters, and yes were just new and fresh takes on existing stories like everythibg is.

The new movies lean way too hard into nostalgia for nostalgia's sake instead while also contradicting a lot of the established world building of the original movies without more than one or two memorable characters. They spend way too much time talking about the macguffins instwad of using them to advance the plot, have special effects sequences that drag on too long which makes them tedious instead of tense and exciting. They waste leading characters by setting up some interesting possibilities that could be explored, like a stormtrooper who deserted or the knight of Ren, both of which were introduced at the start of Ep 7, then drop them to spend time on macguffins leading to new macguffins like the stupid sith dagger bullshit that made zero sense.

The sequel trilogy starts with a rehash of the original trilogy, but a worse story and with better special effects. It isn't memorable and then two incoherent movies that dropped the interesting parts of ep 7 to waste time on pointless spectacle.

Rogue One had the style of the first films down, but didn't pull off being memorable. I put it third after Empire Strikes back and A New Hope.

None of this is to say the original trilogy is perfect or anything, it is just more fun to watch and quote and that is what is important with adventure stories. Spectacle doesn't matter when the story sets up something interesting and then forgets about it.

As succinctly as possible:

Disney paid a billion dollars for a franchise people cared about. It doesn't matter what the franchise was or anything else, what mattered is that people cared and many considered it to be culturally significant.

Disney then made a trilogy without a long term plan other than "make a trilogy".

The writing was at best lackluster, at worst laughable. Specific examples abound ("somehow, Palpatine returned") but the major problems are that the core conflict of the middle film of the trilogy was contrived and the third film then had to scramble to cover the glaring, obvious problems. This writing issue eclipses other (still very serious) problems like a lack of character development with the main character, setups without payoffs, and trivializing or bastardizing supporting characters.

When episode 2 was released I have already read at least 10 books from the star wars universe. Chronologically before episode 1 and after episode 6.

The authors of these books exchanged concepts, aligned the universe across ther works and put care into consistencz between different reads. They probably even questioned george lucas about the possible future.

And then there came disney, dumped across years of work and didn't bother to align anything. This is why they suck hardcore to me. And then these films are dump and just money-grabbing machines.

Fuck everything since disney. They simply suck hardcore.

Here ya go. This goes into great and specific detail about why the original movies are much better movies than the newer ones

https://m.youtube.com/watch?v=FxKtZmQgxrI&list=PL5919C8DE6F720A2D&index=1&pp=iAQB