1) Why is a lack of "DEI" a "challenge", unless someone punishes you for it? And who is going to punish you for it, and how, and why?
2) You can certainly "train" developers. You can probably train anyone who is sufficiently motivated, no matter what their starting knowledge and skillset are. Examples abound. The question is, why should you invest in that rather than pick the ones who have already been trained.
3) "Talent". That favorite grandiose American word. If you lower the entrance bar, how do you separate the wheat of "talent" from the chaff of "lack of talent"?
4) Why are Google interviews — or interviews at other FAANG companies — said to be so hard? These sure qualify as "larger firms"?