That's a mere pittance compared to what the wealthy actually spend on conservatives and messaging. That's 1 billion dollars every 4 years. Fox news, daily wire, OANN, and all the myriad of other propaganda outlets churn through more than that a year.
The Democratic party has a problem, and that problem is what Democratic voters want doesn't align with what Democratic donors want. The voters want progressive policies passed, while the donors want the same neoliberalism that keeps them rich. And trying to appease one of those groups obviously alienates the other.
If any Democratic politician truly wants to help the American population, the fact that Kamala raised so much money in such a short amount of time, and the fact that many states passed progressive policies even though they voted for Trump, should tell them that they don't need to kowtow to the wealthy because the voters will support them. Unfortunately, I don't think they're going to learn that lesson.
Republicans, of course, don't have this problem because their voters and their donors all want the same thing.
The whole point of this was asking why Democrats are catering to wealthy conservative donors instead of progressive or left leaning voters. I just stated the reason why. The 1 billion dollars collected from small donors every four years for a presidential run is nice. But it's nothing compared to what the wealthy dump into messaging and campaigning constantly. Until such time as small donors can even come close to remotely matching that. Sustaining entire media Outlet ecosystems to counter the propaganda from conservatives. Democrats aren't going to give up trying to get some of that wealthy conservative money