I haven't seen any good studies debunking it, but neither have I seen any studies which prove it. That IQ is heritable and has a large genetic component however

I haven't seen any good studies debunking it, but neither have I seen any studies which prove it. That IQ is heritable and has a large genetic component however is "settled science" [a], and the current trend in behavioural genetics seems to be that a large swathe of cognitive and social behaviours are very heritable indeed. [a]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270739/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270739/