Oppressors creating spaces in which marginalized groups are not allowed=segregation
Oppressed peoples creating spaces in which their oppressors are not allowed for their own comfort=safe spaces
Segregation upholds the idea that some lives are subhuman and less valuable then others and are therefore not worthy of occupying the same space
Safe spaces are created so that oppressed peoples can have a moment away from the privilege and power their oppressors will always wield, simply to breathe and be safe from their oppressors
They are literally not the same thing
(Source: genderpunkrock, via isaacfloof)