This guy is misleading. The left is "obsessed" with representation in "high status positions" because "high status" is a proxy for power and influence, i.e. the positions that craft the systems the affect everyone else. The systems that have been constructed and maintained over the years aggregately prefer cis straight white men.
To be fair, I don't think the Left's focus on high status positions will achieve the equality we think it will. It's a much better idea to focus on improving the earliest segments of the pipeline, making sure everyone has equal access to good education, healthcare, jobs, etc. If you build up populations from the ground, you wind up with a populace that equally competitive for the top positions in our society. The problem is neither Rupublicans or Democrats are actually interested in this approach, because it takes time, and thus won't produce results they can use to get reelected. I think term limits for senators, representatives, and supreme court justices would go a long way to eroding corruption in the federal government.
I agree, the populace needs to be taken care of and empowered. However, those supports are beholden to the systems set and maintained by those with power i.e. the "high status" positions I refer to. There's no lifting up a populace with a system that's designed to keep them down. You need a change in the people with power to create change in the systems in a way that can actually help people. That includes getting people into power that are not just sympathetic to a variety of groups, but who are part of those groups so they can bring their lived experience and visible representation to the places where meaningful decisions are made.
Interesting clip, but I think Murray's analysis of the Left is pretty flawed. He focuses on the Left's support for affirmative action—and there's perhaps some good criticism to be made of that, but it's not in this video—but conveniently doesn't mention the fact that the Right isn't doing jack shit to solve the problem of societal inequality. They shoot down Leftist ideas, but offer no alternatives. That's why they've been gradually losing on all these equality fronts and the culture war in general.