Anecdotally, judging from my friends in both categories, it's easier to get hired and promoted (implicit disclaimer: in the US tech scene) as a competent white man than as an equally-competent woman or racial/ethnic minority, if you are job-hunting.

One of the side effects of entrenched racism and sexism is that competent women and minorities tend to be underemployed more than competent white men, and so as the biases are being broken down, you'll see way more women and minorities (compared to the ratios in the general population) being hired or promoted to the right place compared to white men. Out of people who are competent to be senior developers, way more white men than women or minorities already have a good job fit, and in turn, way fewer of them are on the job market or easily poachable.

So the market, as a whole, can be biased in favor of hiring and promoting women and minorities without it being any easier for the individual developer who happens to be a woman or minority.

The market as a whole is getting purpotedly pushed to hire minorities. Apparently. Is it working(in the tech sector)? Or, are they just making the white guys resentful and so making it harder in the long run?

Not sure. But I don't think it's helping.