Impetutal here's an idea why not come up with an alternative lore that you and the rest of you like but that would fit in with the direction Riot's going? You know you've all said you've got great ideas and such so why not put fingers to keyboards so to speak and come up with something that you think will work. It's become obvious Riot isn't goint back on their decision so instead of having people constantly make new posts about it help steer it where you think it should go.
Try giving Riot some ideas on what you and the others want by actually writing some stuff up and who knows you might get a better response or a job offer as an intern if the stuff is good. Try doing something more than just complaining about it, do something that is positive and gives good feedback with ideas storyline arcs etc. Do something along the lines of how Lucian and Thresh have a storyline arc but with some of the other champions that don't relly have anything going for them. Bring up some stuff from the old lore and tie it into the new stuff similar to how they did the Sion rework.
Since right now everytime you and the others post it's almost always the same thing and so most of the community ignores and downvotes you and Riot never responds because it's become stale. Try putting some fresh ingredients in it so to speak and leave out the negativity and you'll probably get a much better response.
I for one would like to see your vision on lore along with some of the others since if you provide good vision and good lore ideas that can work inside Riot's new direction most of the community will get behind you and Riot is more likely to take notice and look positively on that.