1) You should have filed a complaint with the sirport and launched an all out offensive against the management at that airport. I have no mercy for those that are rude, tell someone to shut up, or fail to get a supe when you ask for one. Just because you are from a different country does not make you less of a person. If you are here legally, you have every right that I do (with some limitations like citizenship, guns, etc). Sorry that happened.
2) You should have filed battery charges against the TSO, and forced the issue. There is NO excuse for physical interaction with a passenger outside of the normal clearing procedures, period (unless we are shaking hands, or some other mutual action we both agree to). I would have asked for a supe, then asked for the LEO, then written my congressperson and/or senator, and launched an all out blitz against the offending TSO and airport if they did not respond properly.
3) I always try to pack the bag as close to the original way it was packed, if there is a certain way you have it packed I would even offer to help if you asked me for it (some people have a special way they pack things, and I would do my best to get it as close as possible). The tables are supposed to be cleaned if dirty. Sorry that this was a bad experience for you, you should have filed a complaint on the spot.
4) We are required by SOP to wear gloves and change them if a passenger requests. This is a hard and fast rule that has been in effect since I got here and I don't ssee that changing, it is for the TSOs protection 1st, the passengers 2nd. In this situation, you should have asked for the supe, and filed a complaint.
Before you jump on me, I know that asking for a supe and filing a complaint is sometimes not followed up on, I really hate that. We should have a better redress system and it should be easy for you to request a supe, it is their job to handle escalations. It should be fairly easy for you to file a complaint and follow up on the complaint with a SPOC. I don't understand how we have such a hard time establishing basics like this, it is simple and the easiest way to improve customer relations. You may not get the result you want, but you should at least know that the complaint has been handled, and addressed... Know what I mean?