Kaptin M,
Perhaps you work for one of the better airlines around. If everyone who worked for an airline such as mine was to resign due safety concerns, there would be thousands more pilots out of work. (a few hundred from my airline)
How would I support my family. Easy for you to say just resign, perhaps you could resign from your airline so I could take your spot, then you would be one of the hundreds without work. This culture has come from the managers and regulators of the industry.
Dont shoot the messenger.
As I said, you may not be fired immediately for refusing any one the points I mentioned, but someone has in my airline recently for the various reasons I mentioned.
There are many airlines throughout the world who do not operate to your airlines standards.