The leftists believes that the future belong to them. Their conviction is so strong that they manage to instill pesimisim in the hearts of their oponents. But when the leftist projects collapse, like Soviet system did, the left gets bewildered and the right is surprised.
When they tell you that the clock of history cannot be turned back or that it follows the predicted pattern, do not believe it.
Actually, the best news about Roe V Wade is that it [ironically] suppressed the creation of liberal voters for nearly two generations...at the request of liberals. Who could ask for anything more, indeed??
This is their greatest weakness, the Marxist faith in the "iron laws of history". The armies of socialism only march in one direction.
From 1932-1978, US election results and this false fixed belief moved in tandem.
Since 1980, and especially since 1994, things haven't been so good.
This has caused all sorts of other, more absurd Marxist "theories" like false consciousness and economic determinism to bubble to the surface.
The fact is, they are losing this country after having it in their reach, and they are suffering from severe cognitive dissonance as a result.
After all, their victory is guaranteed by the "iron laws of history".