Sympathizer is someone who shares the feelings and/or the ideas of others ( people, party etc.)
A person who favors communist
I am sorry there is no such word. If you mean ration, it means an amount of something.
"avictus" is not a word in English, ( or even Latin, as it sounds). The nearest thing I can think you may mean is "invictus" which is Latin for 'we will not be conquered'.
river bank
An abolistine does not seem to mean anything but might be related to the word abolitionist. An abolitionist is a person who fought against slavery. Abolistine might be a version of that word.
Tory
Sympathizer
No.
Tori
Tori
divisor
A person who favors communist
No, he was not.
Copperhead
The abstract noun form of the adjective 'sympathetic' is sympatheticness, a word for a quality.The word 'sympathetic' is the adjective form of the abstract noun sympathy, a word for an emotion.
Rebel, but more accurately a Confederate sympathizer.
Cavaradossi, Mario (Puccini: Tosca). Tenor. A painter and republican sympathizer in love with Tosca.