Progressives aren't pissed by what Obama is doing. That, itself, shows what is important to them as a group: Getting their programs in place no matter what the Constitution says and no matter what other citizens want and think.
But the damage being done to our Republic goes far beyond whether these "programs" are good or not. Programs, after all, can always be changed. But destruction of the very foundation of our Republic-- its laws, its governing principles, its taking power from any one man or group of men and accepting as bedrock that it belongs to us all -- "We The People" -- cannot be so easily undone.
As James Madison wrote: “The accumulation of all powers, legislative, executive and judiciary, in the same hands, whether of one, a few or many, and whether hereditary, self-appointed or elective, may justly be pronounced the very definition of tyranny.”
What Madison is saying is this: If you, or any person or group, favors what Obama is doing just because you/they think "it's good," or because you/they love to be able to say "hurray for our side!" -- than you/they don't love our Republic. No, nor do you love democracy. What you do love is tyranny.