No hard fork please, you know the price crashed due to Chinese Antpool mined BU block? Hard fork will 100% kill bitcoin, or hazard the price.
That's just silly hysteria. You should be made aware that BU blocks have been mined into the main Bitcoin blockchain for over a year now.
It's just a flag added to the block to show whether the pool is voting for segwit or BU, nothing more. The blocks are exactly the same otherwise as far as I know.