Will I be affected if it is not my job, or grade that bosses plan to cut?

Yes.

You will still be affected, by:
- increased workload and responsibility on those who remain
- loss of support available in doing your job
- more dissatisfied passengers, meaning more complaints, abuse and assaults
- less opportunity for transfer, promotion, career change or redeployment
- less money going into the pension fund
If management succeed in their current round of job cuts, then it could be your job next.