I can't see for the life of me what anyone seez in Kane.
Within the narrative, Kane is very popular because he also offers a source of unity in a world that is, quite literally, ending before our eyes. Also, he preaches a message that reaches the most primitive part of the soul, vengeance, to a populace that wants very badly because they feel like they've been forgotten by the perceived leadership in the remaining few Blue Zones(pristine areas, virtually untouched by Tiberium.)in what became the Yellow Zones(barely habitable) and Red Zones(wastelands, virtually unihabitable) as Tiberium takes over and changes the world.
GDI for they're part are doing what they can, but when you have limited resources, you can't save everyone there isn't enough time or manpower.
What I am most interested in is the "biology" of Tiberium. Does it only leech minerals and such from the soil and make the green crystal or does it's tendrils reach down into the liquid portions of the planet as well? We know that it eventually destroys the planet it's been seeded on, but does it do it as part of it's life cycle or does the leeching effect simply weaken the crust until it can no longer hold together against the interal pressures and simply split like a over-inflated ball along one of the seams?