That's a definite possibility. But the op proposed that PC component vendors stock price would drop and therefore no one would build PC parts.
Chinese companies could fill the void if Samsung, SK Hynix, and Micron are slow to switch back. But there is no situation where companies simply stop taking money. However I believe that after the bubble pops, ram prices will not go back to the same price they were last year. Everyone will have to pay more and Chinese companies will be happy to take that extra money too.