Not sure what direction you want, but maybe this will help; We're learning = we are learning We're learning {We're learning} How much? {We're learning} {so much} = a lot {We're learning so much} {about} WHAT? {We're learning so much} {about} {the culture and politics} {We're learning so much} {...} WHEN ? {We're learning so much} {...} {in this post-apartheid time} {post-apartheid} = as described by others (the time after the abolition of "separate development") policy. {We're learning {so much}} {about the culture and politics} {in this post-apartheid time} You'll see I ignored the "here". I don't know where it belongs. Could be {We're learning so much} WHERE? {We're learning so much} here or {We're learning so much} {about} {the culture and politics here} I think you need some context to resolve the ambiguity. Hope this helps.

your sentence means that after the great racial problems (e.g. in South Africa) we pay much more attention to studying other cultures

Apartheid was a system of legal racial segregation enforced by the National Party government in South Africa between 1948 and 1994, under which the rights of the majority non-white inhabitants of South Africa were curtailed and minority rule by whites was maintained.(Wikipedia)