No, they won't.
They are all in with using force against their opposition. And they believe they can control what they have raised up. When it turns on them they will blame it on the "Vast Right Wing Conspiracy". And the Joos! Always, the Joos! The Dems may suffer as as result of what they do, but they will always blame somebody else for it.
Don't look for regrets or apologies from the Dems.
“And they believe they can control what they have raised up.”
Hitler got the brownshirts (SA) under control in the night of the long knives. It only took killing Rohm and 85 to 200 of them (probably 3 million SA members then) followed by a propaganda campaign to eliminate them as a political force in Nazi Germany.