I have, and I have perspective from other industries as well that have priced themselves out of the market. There is more at stake than pilots likes and dislikes. You can draw a line in the sand but be careful what you ask for. Alpa recognizes that - it is called "jacking up the house." Costs must be competitive; no one survives if their competors cost are not in line with theirs.
The article post in this forum referencing regional contract renewal demonstrates that the majors have avoided "tail risks" but that shortsightedness on the part of lift providers has been exposed and it is doubtful that financing will be available for fleet replacement as rj's obsolesce before they are paid for. I do look to the majors to have to pony up for these costs. OR get out of that segment of the business as costs exceed revenues. As I often state - in the end economics (like gravity) wins.