The events of the last twelve hours underline the gravity of what is at stake in Ukraine. After the apparent stand-down of the protesters the extremists came back with a vengeance.
This is not a cohort that the West can overtly support, what with the rampant anti-semitism and xenophobia associated with it. We can't be seen to be cajoling Putin about gay rights in Russia while at the same time tying our wagon to even more virulently homophobic elements in Ukraine. The rabid right in Ukraine is a non-starter.
At the same time, that is the nature of the most vehement opposition at the moment, and they do have one feature prized by the West; they are anti-Russian and even more importantly, anti-Putin. A vast cross-section of Congress and the Senate will support them for that reason alone.
This could be the first time in recent history that the Israel lobby can achieve something useful; call off their congressional dogs from their blind anti-Putinism.