Doomsday scenarios — are conservatives or Progressives better at predicting the future?

In America, each side of the political aisle routinely accuses the other of engaging in “scare” tactics.  Each side is right.  Doomsday scenarios are how you engage an increasingly distracted population.  My question for you is, when it comes to predicting doomsday scenarios to engage the population, which side is more accurate?

I’ve got three Progressive predictions, two of which were definitely wrong and one of which I think is proving to be wrong:

Progressives argued global cooling, and they were wrong.

Progressives argued anthropogenic global warming, which they’ve now altered to anthropogenic climate change, which I’m sure they will alter to some other fine name when their predictions fail to come to pass.  Currently, I count them as wrong.

Progressives promised that, if “welfare as we know it” ended in 1994, the poor would be dying in the streets.  They were wrong.

Here are three conservative predictions that were correct:

Conservatives said that if ObamaCare passed, health care costs would go up immediately and dramatically.  So far, they’ve been right.

Conservatives said that withdrawing from the Vietnam War would result in a blood bath.  They were right.

Conservatives said that “welfare as we know it” was a miserable, enslaving institution and that reforming it would not result in instant death of all poor people.  They were right.

Obviously, I’ve cherry-picked to find incorrect Progressive predictions and correct conservative predictions.  Can you support my position or disprove it?  I’ll be interested either way.