You are worrying too much buddy. If China does go through with the ban, the mining companies like Bitmain etc won't just shut shop, but would relocate to other countries where they can continue their operations smoothly in a legal manner.
I don't know where they will think to relocate too, they have pretty cheap electricity prices..
Reference:
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first of all that picture is from 2011 (8 years ago!) and it is not reliable. secondly it is reporting the "average" electricity cost not the exact one. in many countries there is a wide range of electricity cost, in some places it is very cheap while in other places inside the same country it can be extremely higher. so you can't really decide based on that!