landback isn't about kicking white people out, in most interpretations. it's about collective tribal ownership of land, which, around socialist principles would promote preservation at the expense of private industry. it's not a proposal to have indigenous people come in and just take over the capitalist machinery at the expense of whites, it'll in theory be better for everyone and probably in practice much like the minority SRs of the USSR---russian settlers remained and had political rights, the formerly colonized just got a bit more.