I actually agree with both sides here. There is definitely no need to take away from the seriousness of one issue to make a case about another. But also, there are lots of BAME/POC who come from extremely wealthy well educated backgrounds and who firms recruit in very high numbers imo (I guess I'm especially thinking about some international students). I agree that these groups definitely require much less or at least very little affirmative action help compared to low income/working class background white or POC people.
I think firms are doing a decent job at taking into account all the different diversity strands. The fact that some firms now do voluntary sexuality and disability pay gap reporting is one good indicator. Its going to take time but at least there's movement in the right direction
I'd be interested to see where you're getting the "very high" numbers for this. I can confidently say that most cohorts in most city firms are predominantly White, even if you group every single person of colour and grouped them up. It's also quite lovely to see an asymmetric view taken towards scrutinising BAME/POC candidates, without really doing the same for wealthier White counterparts. If anything is abundantly clear, socioeconomic issues are a very, very big factor. But people are too quick to frame it as a Wealthy BAME/POC vs White Working Class issue, when this is not helpful and only divisive.
I don't know how anyone can say that "very little affirmative action" is required for even those groups, when you can quite literally see law firm reports showing abysmal retention of BAME lawyers at the more senior levels (and we're not even talking about partnership). Would you maintain the same position for women? Even with more overt gender parity quotas, there's still only 15-20% representation at senior levels. It's almost like you're suggesting there is even any substantive (or overtly compensating) affirmative action in place for BAME/POC lawyers (please show me).
My key point on this is that it's good to look at recruiting drives that look diverse. It paints a wonderful picture if you're an optimist. But the picture is really only a lot more complete (and a lot uglier) when you look at actual fee earner representation statistics. Representation in the actual industry is incredibly far from the optics that future trainees and aspiring lawyers see.
I'd also be remiss to not drop a comment about the wealth gap between BAME vs White ethnic groups (and within the BAME term itself, the difference in average socio-economic statuses).
Lastly, just to add a comment on this: "White working-class individuals are the most marginalised and neglected group in the country" - I'm disappointed to see this rhetoric here (and even more so to see it so uncritically supported). As other comments have pointed out, it's a very intersectional topic. But if you're comparing the opportunities of being White + Male, despite being "working class", versus your Black counterparts who are also "working class", you'll see how there are privileges afford to the White Male that allows them to "succeed" (I use the term loosely given the more damning circumstances of being in a poverty-stricken context has over racial and gender 'perks') over their Black counterparts:
https://onlinelibrary.wiley.com/doi/10.1111/gwao.12512