Most of the links you give talks primarily about thorium as an alternative fuel in traditional nuclear reactors, which is not what this article talks about. It

Most of the links you give talks primarily about thorium as an alternative fuel in traditional nuclear reactors, which is not what this article talks about. It talks primarily about Liquid Fluoride Thorium Reactors which are entirely differently to current reactors, which are all solid-state reactors. It's really sad to see the different topics gets confused, because they are really different. Thorium as an alternative fuel doesn't really solve much, besides it's maybe cheaper for some countries. Of course the entire expression "Thorium reactors" are somewhat at fault. It's incredible ambiguous, especially when people inside the current nuclear establishment talks about using thorium in (slightly modified) traditional nuclear reactors, such Pressurized Water Reactors. Of course there are many things which can be said against LFTRs, mostly that it's still an unproven technology. Sadly it'll stay that way if nobody does something about it.