With telepathy, I do sometimes wonder if the telepaths see no point in making external facial expressions for the benefit of their fellow telepaths.
People born blind still make facial expressions. It's hard wired into us to make the expressions, even for a tiny moment, and suppressing those facial expressions is learned.
That's probably why I still laugh, cry, wince, widen my eyes in surprise, etc., when watching TV by myself.
So I don't think telepathy would change that behavior.
The uranium is gonna continue to undergo fission, whether we mine it or not, whether we enrich/refine it or not. At that point it's like collecting energy from our surroundings, really functionally no different than harvesting geothermal, wind, solar, hydro, etc.