anyone who changes a stance on things, or does things which affect persons outside their own block, has to be prepared for the consequences, especially when previously opposed.
for example, Kybernetes was treated with suspicion when he was in that Electus Matari corporation, because he was an Amarrian. I think Elsebeth in particular was suspicious.
And, well, we saw how that turned out,
I helped Mizhara and Havohej and Zuzanna retrieve 1M minmatar people from the Empire, but that doesn't mean Mizhara is now going to invite Lou to whatever social things Mizhara does, or vice versa. In addition to this, people on the ultra-conservative Amarr side argued against the whole thing, they still bring it up in conversation sometimes. On the other side, there were several Minmatar who were against it too, and some of them may make comments about it (not sure, not my field).
An amarr character interacting with minmatar ones draws flak from the conservative Amarrians. The minmatar characters will draw flak from conservative Minmatar as well.
People who change a stance on a topic , are going to be looked at most critically. There will be some who will say "How can they be trusted?" and they will be very hard to convince, and some will never be convinced, and will instead look for any opportunity to say "I told you so", and they would be justified in acting like that, as you can see with Kybernetes there. Some people may have thought they were just being paranoid, but then their suspicions were confirmed.
This would be particularly magnified, I think, with Minmatar groups, and an individual who is basically not one of them, who was part of a slaver group. Sansha, Amarr, Angel, miscellaneous, it would happen to all. Some will say "they cannot be trusted, they are not Minmatar (meaning a full-blooded minmatar raised in Minmatar space)", others will say "they cannot be trusted, once a slaver, always a slaver", and others will have more opinions. The individual concerned, who is saying "Look, I renounce all that" will be held to a much, much higher standard, and any slip ups, however minor, will be pounced upon by some, who will say "I told you so!".
Possibly order of suspicion from most to least might be: Amarr, other foreigner, part-minmatar, Ammatar, Minmatar. Amarrians would be regarded with most suspicion, for obvious reasons, whereas Minmatar would be regarded with least suspicion, being members of one of the Tribes and things of that nature.
By taking a stance on a controversial topic, it is inevitable that some will be alienated, and some will be permanently so. It is the Rubicon. Once crossed, there is no way back.
Also, rollercoasters, swings and roundabouts.
There are several exit strategies, some have been used by other characters in the past, that doesn't mean they're particularly good though.
Clonesplosion - backup does not have memory of past X months. Revert to previous behaviour.
Clonesplosion with amnesia - blank slate, choose to proceed in new direction, abandon all previous associations. Random returning memories can derail things.
Deep Cover Confession - Say it was all an act to help Your_choice intelligence service.
Imprisoned by Android Impersonator/Evil Twin - self explanatory. The Evil Twin did it (whatever it was)
Jovians - Jovians
I am Just Stepping Outside, I may be gone for some time - vanishing act. roll new character.
Not everyone gets to go to the ball. But those that don't are often more interesting, as they have strong opinions about things.