Interesting. Brexit or Texit are bigoted, racist, xenophobic concepts but Calexit is moral, liberal and progressive?
There have been clear situations where a territory has declared independence for reasons that were somewhat bigoted, racist and xenophobic (the confederacy), and many instances where a territory has declared independence for reasons that were not primarly bigoted, racist and xenophobic (probably most times, including the USA itself). Though of course all of these situations are much more complicated than those descriptors.
I'm not suggesting Calexit is a good idea at all, but suggesting an idea is good or not because there is some imagined liberal hypocrisy is not fair. Evaluate the idea on its merits.