While Democrats are, at best, a corporate-dominated center-left party with a history of attacking its left flank, they represent the only viable alternative to the far right Republican agenda. Supporting Democrats, given the alternative, is important. After all, Democrats are the only other political party with real power in a system designed to accommodate the existence of only two parties.
The social safety-net afforded white, middle class boomers access to relative comfort. However, by middle and old age, boomers began supporting hard right-wing politicians such as Ronald Reagan, who made it their goal to destroy the welfare system that had bolstered them to middle-class status.