Magick itself isn’t black, white, or grey. Magick is simply what it is. It is the intent of the person using the magick that molds it into becoming effectual as ‘good’ or ‘bad’, etc.
Categorising each magickal use as being white or black (or somewhere in between) is difficult. Some magickal practises can go awry, bad things may happen to one person due to not enough forethought…does this make the magick ‘black’? Good intent, nomatter how strong, may not make up for causing harm to another. The way in which you practise is entirely up to the individual- it is what you think you can accept morally and judgementally for yourself. As with all witchcraft, there is no right or wrong- it is whatever makes you most comfortable.