Well according to “original” Lucas everyone can have the same abilities if they just train hard enough.
Not canon
Well “original” Lucas is definitely more canon than “special edition” Lucas.
When it comes to a lot of things, yes. Everyone being able to use the Force is not one of them as it would demystify it.
Well it is not good but it is certainly better than force potential being hereditary (which is a nod to midichlorians). In ideal world force potential should be completely random.
Well Anakin is the father of Luke and Leia and they both ended up being Force Sensitive but I doubt that’s specific example doesn’t bother you.
Well I could accept that Luke just happened to be force sensitive by a chance. But Leia being too smells of heritage (and midichlorians). I guess that is the only part of ROTJ that bothers me.
There could have easily been a spiritual/cosmic/whateverthefuck reason for that. It doesn’t need to be microorganisms