What you're seeing is an acknowledgment that bigotry is not okay. A system that denies rights to some people while granting it to others is wrong, and as more people across the country (and world) come to update their standards and realize this basic truth, you see more visibility in media. That's not due to some grand, evil conspiracy. It's because the world is growing up. It's people who still cling to the old ways and lash out violently when asked to share their privileges that need to catch up to everyone else.