I know quite well who lives in the areas of the country that would be most devastated by an eruption. My point is that leftism is a luxury exercised by people who have never had to develop real survival skills. In the case where they would be in a fight for survival, the useless leftists would either die or switch to survival mode. And once in survival mode, those leftist attitudes cannot persist.
How would a rich but useless leftist like Nancy Pelosi survive and keep an iron grip on power when her money is useless and she has no skills? How would poor leftists who are willing enough to submit to power survive when the rich leftists who have made them dependent for so long can no longer confiscate enough from working people to feed and clothe them?
There are many leftist fantastical beliefs that simply would not stand up when the reality of survival rears its head.
I think your mistake is believing the left and right coast liberals will be affected at all. They will continue their lives. Any disruptions to the food supply will be compensated quickly from other areas, including foreign....at their invitation.
Washington DC will be unaffected, but the "emergency legislation" will be massive and will transform everything.
After 9/11, people outside the NY & DC areas went right back to their routines while the WTC was still burning.
Los Angeles and Chicago were business as usual...and where the left started to disrupt our national unity.
The same would be true of a Yellowstone eruption....LA, NYC and DC would go right back to work as usual.
It would be news for a week or so before the media moves onto other things. Look at the latest midwest flooding that got almost zero attention elsewhere in the country.
Look, we can have fun with this conjecture all day. Until the extent of an eruption (small or large) is known and what the actual affects are, we will not know how it will play out. It also depends who is in control in DC.....socialist or Conservative.