Removing SBD will affect bad on the Steem coin, when you take SBD from people they will be forced to power down because they have to life from something and thanks to SBD they can cash out and spend them outside the crypto market.

This is not really accurate. If SBD were removed (I say 'if' - there are really no proposals on the table currently to actually do this) users would be paid in liquid STEEM instead of SBD.