I think the over-the-top media bias is starting to be a disadvantage, because the media largely cheers for the nuttiest elements of the Democratic base and their craziest policies. They aren't impressed with sensible people or adopting mainstream liberal positions. They're impressed with people like AOC, Elizabeth Warren, Bernie Sanders, etc.
They don't like safe, legal, and rare or a generally pro-choice position on abortion with some common sense restrictions like late-term, parental notification, etc. They only like radical reproductive "justice" (no restrictions at all and taxpayer-funded abortion). They aren't satisfied with gay marriage. They want drag queens swinging their dicks in little kids' faces and big dudes competing in women's sports and showering in their locker rooms. They aren't satisfied with holding bad police officers accountable. They want to defund the police.
So they celebrate that crap throughout media and push it on Democratic voters, so the party feels the need to cozy up to it or at least take it seriously. At a minimum, they make it extremely hard for any Democrat to draw the line or distance himself from it. That leaves them totally out of touch with basically anyone who isn't a godless, urban progressive. They don't know how normal humans think or how to communicate with them. For even remotely competent Republican politicians, they're very easy to attack.
The intersectional idiocy hurts them too. If they get a racial minority or female candidate, they can't look at them objectively. They have to pretend they're great. That's how garbage candidates like Hillary Clinton or Kamala Harris become prominent Democrats.
The thing to remember about the Democrat party is they focus on policy, not power.
When they do have power, they use it to drive policy, knowing that
1, their polices will result in more power later, like the takeover of heath insurance and medical care via Obamacare, or bribery via student loan payment, or all the spending bills this congress that will pay for political infrastructure later
2, With total control of the media, big tech, the Federal agencies, schools, law, entertainment, etc., they’re never really out of power, they just have fewer elected officials than the token and controlled opposition.
3. They’ll get back into power a few election cycles later, with no important policies passed by the GOP, save for perhaps the Holy Grail of the party - tax cuts for corporations. So there’s nothing bad to them that happens from having the Republicans keep the seat warm fir 4-6 years. They just pick up where they left the left turning ratchet.
GOP Inc, never understands this, as they crave power more than anything, and is so obsessed with keeping it that they never do anything with it, for fear of losing it, like a car they so cherish that they never take it for a drive.