One month severance is perfectly reasonable. They're under no obligation to make sure people are in a better position than they were before, and if someone walked away from options, etc at a previous company that's their business. One month is enough time to find a job if you aren't choosy.

You have to draw the line somewhere. When the economy goes south, guess what? People will be out of work. I don't know why white collar workers seem to think they need to be isolated from all bad events.