Delta Air Lines, Inc. Discriminated and insulted, the worst customer service, damaged & lost significantly important items Atlanta, Georgia

Looks to me that you were trying to get the airline to give you some reimbursement or something tangible. They should have apologized at the least. This is an incredible story. I've never in all my years of flying experienced a flight attendent who refused to help with baggage storage.

For one thing, your wrestling with the bag blocks the aisle and complicates the flight attendent's role in getting everybody seated and baggage stowed so that the flight can leave.

Any important data, electronic or paper, should be backed up, especially on a trip. If you only had paper documents, you should have copied all of them and stored the copies elsewhere, or mailed them home ahead of your flight.

Better yet, you should have had electronic backup of those docs too, or done them up on electronic media and backed those up accordingly.

What exactly was the discrimination about? What ethnicity race gender vs what ethnicity race gender?

   Why is it that everyone who feels wronged in one way or another automatically yells, discrimination!   What you described is merely a rude or lazy flight attendant.  The airlines are full of them.  How does that equate to discrimination?      You should really look up the meaning of discrimination before you go accusing people of it.   Spurious accusations tend to make people not take you seriously.

 "...have to go back to Turkey to gather my research again because they lost my research folder. "
When you return from Turkey on your next trip, may I respectfully suggest that anything as important as your research folder should NEVER be placed in checked baggage.

If the flight attendant truly treated you as you stated (I've travelled a lot and only once had one remotely rude), you should take a different airline.

I'm not sure that approached discrimination, however.