Midichlorians are a good establishment for Star Wars and make way more sense than "anyone can use the Force" ever will.

There's no contradiction with the Force being omnipresent, binding all of creation, and only a few people having a unique connection to it.

Here's what's going on in Lucas's films: First, Coruscant is fundamentally designed to evoke the Death Star. Coruscant represents the urban-political world, while the Death Star represents the pure technological world. These two worlds are conceptually distinct, yet very closely related. Coruscant does not look exactly like the Death Star all the time or at every level of its vertical structure, but there is still a visual relationship. As you get farther from the top levels of Coruscant, where the politicians live, the aesthetic of Coruscant starts to diverge more from the Death Star, which you see in the lower entertainment levels or in the Underworld proper. When the Empire takes over, it does not literally remodel the entire planet of Coruscant at every level and start inserting terrestrial-looking Brutalist structures into random locations, as we see in Andor. There is a very specific and unique Imperialized Brutalist look, which starts with military bases installed during the Clone Wars and would presumably have expanded outward from there as Coruscant became more and more a militarized and policed society. There was a highly intentional system of interrelated aesthetic relationships that Lucas established across various levels of the society as well as across various time periods, and a logical progression from the Republic era to the Imperialized era was clearly being seeded by Lucas in a very specific way on Coruscant. Andor ignores all of this, and the result is a far less coherent or interesting aesthetic universe than the one created by George Lucas, the creator of Star Wars.