Sadly, even though I am neither disfellowshipped nor disassociated, the majority of JWs still shun me as well as members of my family. Fortunately, my mother understood why I left, and she didn't shun me, but JW cousins and the majority of JW "friends" refuse to speak to me unless I agree to go back to the Kingdom Hall, which I will not and cannot do.
Several of my JW friends have left the organization as well, and our friendships continue to this day, so for that I'm grateful.
Anyone who leaves the JW organization and speaks out against it in any way is labelled as an "apostate" and is considered to be, basically, a "dead man walking." This is, IMO, yet another control mechanism employed by the JW organization to prevent current members from actually examining their religion (as they urge all others to do) and finding out things that the leadership would prefer remain hidden.
It is excellent that your mother is still there for you. I know in some instances even parents severe ties with their children. I can not think of too many more harmful actions than a parent to disown their child or a child to cut ties with their parents. There are exceptions of course such as sexual abuse, but not because our family members choose a worldview other than our own. Of course you should not remain silent but are obligated to speak out against a religion that causes division and estrangement. The religion of God should be like a healing medicine causing love and unity. If it causes hatred and estrangement then the medicine is really a poison. To leave such a religion is a truly religious act.
For me, Faith is about love for God, His Messengers and humanity. Love is about taking people as they are and understanding their journey even though it may differ from our own. Christ taught to see the good in all people and not to judge them (Matthew 7:1-4). He did not teach us to shun those who believe or think differently from ourselves.