We have the history of Republican opposition. You can’t blame them; they’re a minority party trying to cling to power. If everyone had to vote, they’d be toast.
I agree that this is likely because when I was working I always tried to talk my young coworkers into voting. They were mostly poor Black women who would have voted for the Democrats if they bothered to vote. I finally got two to register and vote when Obama was running, bt one "forgot" to vote in the next election. She didn't even know that we have 3 full weeks of early voting in Georgia.
I've known other people who never voted and most of them would vote for the Dems if they bothered to vote. On the other hand, there are many Americans who only vote Republican for two reasons, they have been told that the Dems are going tot take away their guns, or they believe that abortion should be banned.
I like what a woman in her 80s, who still worked part time told me. "My daddy told me that the Republican Party is the party for the rich and the Democratic Party is the party for the rest of us". She was a white Southerner who voted Democrat her entire life. There are plenty like her, but it doesn't help when young liberals demonize older adults without having a clue which party they support when they vote.
On the other hand, I've never understood why good people, like my dear neighbor across the street, who is in his late 70s, vote Republican. He's a good man but for some reason, he still believes that Obama was born in Kenya. Ignorance is another problem that we may never overcome.
The Republicans have done a great job of manipulating voters by demonizing the Democrats over gun control and abortion. Conservative Christians churches sometimes tell their congregants to vote Republican. I know this because my mother, who died recently, used to complain to her atheist daughter about how her pastor tried to get people to vote Republican. Fortunately, my mom was never persuaded to vote Republican.
We have so many issues that make it difficult for the Dems, from gerrymandering to voter suppression and the damn electoral college. That's why we need everyone to vote.