Permanent Resident Status is as secure as citizenship because it is called permanent. There is no need to be insecure. Those people who are insecure are people with unstable mind who cannot control their own psychological emotions. I do agree that citizenship has more benefits like getting jobs which requires security clearance and voting rights. Also, bringing spouse and other relatives from Nepal, it becomes lot easier if you are a citizen. Again, there are always pros and cons of any subject matter. You need to weigh those pros and cons and do the cost benefit analysis.