There is a decent amount of left-leaning media out there. Bong Joon-ho won an Oscar for ‘Parasite’. It’s completely fine and even fashionable to take swipes at rich people. You can get that stuff made, and it has broad appeal, but my guess is that it’s an issue of who ends up in the position to make films. The WGA strike is highlighting how bad the industry has gotten as far as letting people make a living, and so more and more creatives are from the upper class, including a growing number of nepotism hires. Most of them more than likely wouldn’t even know how to make something about class consciousness, and even fewer would have any reason to do so.
There’s no grand 👁️ conspiracy to keep left-leaning media down, it’s just that the 💰 mostly goes to people who don’t make that kind of thing. I doubt it’s that much more complicated than that, although that’s not nothing.