The counter argument is that there is 'hate speech' on twitter directed at many types of people and many ideologies that 'threaten the survival of people'. But

The counter argument is that there is 'hate speech' on twitter directed at many types of people and many ideologies that 'threaten the survival of people'. But twitter is only removing certain groups and ideology while sanctioning others that are just as hateful and threatening. So twitter loses the moral argument that they are trying to prevent these activities. They expose an ideological bias. And by hosting only certain types of 'hate speech' and radical ideologies they are promoting it.