This is true regardless of symptom severity or health status, every person is at risk. I think most people really aren’t aware of this, they absorbed the narrative that it’s gone, mild, only kills/harms the vulnerable, etc. This isn’t really their fault, there are a lot of factors that have led people to that belief, but people should know their lives and livelihoods are much more at risk now than 4 years ago.
And that this isn’t inevitable, there are simple methods of disrupting transmission and protecting yourself and others. COVID-19 is here to stay (unless we do something about that) and it has impacts on every person infected and on society at large. That shouldn’t mean folks accept illness and worse quality of life. We adapt and adopt precautions in our life to reduce long-term health impacts, like we’ve done before with many other illnesses that plague humanity.
People care because we’re people and don’t like to see unnecessary suffering, especially if we’re able to change it. In western countries, our governments (and taxes) are supporting this, we have significant power to influence the outcome.
We also understand that our struggles are connected. The problems in my community are tied to the US support of Israel and their ongoing violent oppression of Palestinians. They cannot be separated, and to create any lasting change we must address the issues in whole, which requires examining how they relate and working to break those connections. The “popularity” in the media is a moment to facilitate doing the good you’re talking about, that’s why so many long time organizers in social just areas are doing exactly what needs doing, seizing the moment.