Ukraine does not have autonomy. It is ruled by a coup government installed by the US in 2014. Elections have been disbanded and opposition parties declared illegal. Roving gangs of Nazis carry out pogroms and it is illegal to leave the country.
What autonomy do the ukrainians have in this situation? The only one they have is refusing military service, which is why they are being forced to serve. So looking at the only outlet they have - Not being willing to fight - it seems they are opposing this war.
Why are you denying them that autonomy?