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Your post is a clever mix of valid and invalid grouses. The stuff of a good story.
The first post by etops777 had no background to what he had posted, so he presented a weak case and ended up looking like some unhappy grumbler ranting away.
Now that you have provided more information, it might be more believable that there are indeed some evil and nasty types in CAL / EVA management waiting to get you. But this is not unusual at all. In just about every airline there will be some characters like that and sometimes they become senior enough.
If there is a bully in your group are you also not responsible if you passively allowed him to become that way? Or are you going to say that he is where he is, completely on his own "merit", in spite of concerted efforts to stop him from getting there?
So let's take your first remark about the safety vest. Is it your suggestion that a "review board" is much too harsh a punishment for not wearing the reflective vest? Since there is clear proof that the event took place, it cannot be mere accusation. Was it already clear to crew that they were to wear the vest (itself a safety-based, very legitimate instruction), and that failure to do so can result in review board consequences? Or was the review board an absurd consequence / abuse of power? Why have you left out such details? You need to be more convincing.
Moving on to the cabin crew being fired for the bread: SIA has also fired crew for similar incidents. They knew it was an offence. They took leftovers, got caught, were investigated and fired, end of story. In the case you mentioned, did the crew know that they were not to do such things? On the other hand, if your company has nothing in writing that prohibits the following, do you therefore then siphon out the kerosene from your tanks if actual burnoff is less than planned burnoff "AFTER" (following your example of using uppercase) a flight?
And finally, your remarks about the 0.02 BAC limit. Sweden also has a 0.02 limit. But to say that you can trigger that with a fart reveals your attitude towards instructions, authority and discipline.
Since there is such an obvious mismatch of expectations, and CAL or EVA management ain't leaving, then just put your money where your mouth is and leave.