Whilst racialisation (i.e. the process by which groups and individuals come to be seen as part of a distinct 'race') involves cultural and biological assumptions, we spend far more time explaining the process of 'cultural' rather than 'biological'/'hereditary' racialisation. 1/
For instance, it is generally accepted by a wide variety of people on the left that race is a social construct insofar as it involves lumping together and 'pathologising' a variety of different cultural practices and behaviours. 2/
Even liberals. without a structural analysis of racism, will generally be able to see that to make behavioural assumptions about individuals or groups on racial grounds is 'racist' (i.e. that it involves too great a faith in the predictive capacity of the category of 'race'). 3/