Nobody is neutral and who claims to be is either manipulated or manipulating someone else.
However refusing criticisms is highly inefficient and counter productive.
I always welcome criticisms because people
- might be plain right and make me aware of my blind spots (because each of us have many blind spots)
- might change their mind if they are wrong in good faith (and I know my stuffs enough to explain them)
- might provide perspective I can't see from my location