I think, google can change the software in this new kind of computer - and mine a little on the Bitcoin Network, to show, what a kind of efficiency this new computer has.
Maybe with some similar computer can google (alone or with partners) decrease the mining power of China below 50%
There is a battle going on with some of the major technology companies to crack the quantum computing and google is just one of the many companies that are trying to achieve it and the expense is really high and there are no plans by any of these companies to have a detour on their program and focus on something else, if a chip manufacturing company focus on these then we can have a speculation to debate.