In many ways this was a bizarre election. It wasn't super close, and R's likely end up with all 3 branches, so it's obviously easy to conclude it was a rounding defeat for liberalism.
But Fly Guy does also need to remember that a few hundred thousand votes in 3 states decided it, at a time when incumbents are losing everywhere, in a country that won't accept a female president, so let's not get sucked into the idea of overreacting by completely tearing down the Democratic Party. Obviously a thoughtful review should lead to changes in policy and tactics, but be careful about going too far with this unnecessarily.