Prove it.
I can already tell this about you, and I'm an AF Academy grad and former AF officer.
If you got shi**y ratings, son, it isn't because of your religion (or lack thereof). I can spot a whiner who can't take responsibility for his actions and performance a mile away.
Go look in a mirror at your problem; save me the Christian bashing. Lame; very, very lame.
Fine, then explain why I could not go to Rosh Hashanah and Yom Kippur services at Yongsan Garrison in 1999.
Explain why my supervisor stated that he did not feel it appropriate to authorize this, and when further questioned, felt it completely appropriate to authorize any of his airmen to go to Christmas or Easter services with all other variables constant (mission requirements, manning, etc, etc, etc).
(If mission requirements require one to work over the holidays, that's a different story.)
Also, can you explain why, in 2004, official orders had to be generated to authorize Jewish personnel permission to attend High Holy Day services in South Korea?
If there isn't a problem, how DO you explain it?
PS: If you are quite friendly with your supervisor, it is VERY easy to assign someone less than perfect scores on an EPR. (a la majority 4's instead of 5's) Not to mention writing the EPR using the less favorable bullets instead of the most favorable (both are good, just one is better than the one - ie - ignoring the 'saved $100,000 in unit funds' and using instead the 'rated the 2nd best in customer satisfaction')
That is different than giving a poor rating, however, as that is nigh impossible even with proper documentation.
But you can easily keep someone from earning an AFAM or reduce an ACOM to an AFAM. (or JSAM/JCOM).