Hollywood is creatively bankrupt. They can't come up with anything comparable to SW and ST, and they don't even want to take the risks of spending a shitload of money on AAA show/series only for it to flop because people don't like it, ESPECIALLY given how divided the audience is these days between traditional values and protagonists AND feminist/woke values and the politics and preaching that come with these and which only appeal to a minority audience but producers think it's the way to go because their only contact with the audiences is through Twitter and that platform is severely leaning towards Leftist values. Hence the stream of woke shows that go straight into the sewer: Ghostbusters 2016, Ocean's 8, Suicide Squad, even Tenet which was supposed to be great but had mediocre earnings.
So until movie makers are certain that a show will be accepted by all, they'd rather not risk a lot of money, and they prefer to parasite old franchises that were successful prior to 2015.
And they refuse to remove the wokeness because an un-woke show is going to be blasted on social media to hell and back, which will make movie critics score it very low, which in turn will make movie awards ignore it. So movie producers would rather lose money but win awards, rather than the opposite.