They might not be so willing to fall on their swords while the house tries to give one last FU to the American public.
The problem comes with the aftermath of such a law.
How many individual's personal lines in the sand will be crossed when the government confiscated 100s of thousands of dollars, and in many cases millions of dollars from them?
How many of these people have the means of making the lives of certain public figures very precarious?
How many will act when their personal fortunes are
taken stolen?
By the time the law would take effect (don't discount a 'special' weekend session like they did with obamacare), the Republicans would be in power and left holding the bag when 'order' needs to be restored.
The democrats will be less remembered for their massive theft than republicans will be remembered for being 'fascists who trampled all over the Constitution' once the dust settles.