I'd place the blame on the Democrats pushing such an unlikable candidate, Hillary Clinton, that they couldn't move enough people to vote to get past the electoral college bias. There's also the fact that most people thought "How bad could Trump be. He looks honest and confident in what he says" and a lot of positive media around that time being about Trump.
This time, we have Kamala Harris who's actually really good at campaigning and getting support. The move the Democrats pulled managed to derail the GOP Propaganda machines (like Faux News) and put the positive focus on Harris instead of Trump.
Regardless of what is happening in the Republican side, we still need to vote since this could be our last chance to vote.
For anyone curious, I couldn't find an exact statistics but hearing aids in the US cost between $2000 to $8000 per pair with the average costs sitting around $5000-$6000 per pair.
Insurance coverage varies per insurance provider and per state. It looks like many people will end up paying the maximum required by law before insurance takes over which is roughly between $1000-$3000 depending on state.
Not only is a single purchase expensive, you usually have to replace them every 3 to 5 years.