If FOs are inexperienced but able to handle the aircraft, teach them. They are still new to the job and, once they are capable in their FO duties, should be seen as UT Captains. Everyone in the left hand seat is capable of providing some experience to them.
If they are not capable of handling the aircraft report the fact back up the training chain.
If anyone feels that safety is being compromised, for whatever reason, it would be better if they approached their Chief Pilot rather than whinge on a forum.