You are just starting your career, I am in the middle of mine. You are as yet unproven in the field, I have proven myself over 33 years.
Seems to me if anyone fears for his job, it is you.
And I shall now stop discussing this with you. You only have "what you were told" in school and the AANA self preservation concerns as a basis for your views. You have not worked enough in the real world to have formed valid opinions of your own.