Eh they've been building capacity though.
unless they're literally just been lying they've been struggling really badly to do this, they constantly keep missing their production targets by a ton (in artillery shells particularly but i remember reading about them missing it in other areas too). i will believe they have ramped up military production to a reasonable degree after i see it and not a moment before.
They plan to turn it into their war factory for the coming war with Russia and/or China and I do think that within the next 3 years they'll have that capacity operational and be able to use it against China or Russia and it will be significant in the amount of production capacity it will give them and the ability it will give the west to stay in a long fight.
placing your fancy new arm production facilities (even underground ones) within striking range of Russia's missiles while planning to go to war against them again would be so stupid i struggle to imagine even the dumbest among the ruling class would entertain the idea
i still dont understand how hudson is so shameless about this shit, my god man how is it not clear to you that you and all the other trots you knew maybe were totally wrong about the "stalinists"???