That right, the right to choose for one's self, already exists for Jehovah's Witnesses. A religious authority cannot remove it. That Witnesses believe they must abide by 1 Corinthians 5:11 means that the majority will choose not to talk to expelled members. The issue here is that being disfellowshipped is an unhappy and hurtful experience. You don't like it. I would not like it. But the decision as to how to deal with a former member, even a family member remains in the individuals hands.
A political party tells its members how to vote and what to think. Many cross party lines, rejecting the dictates of party officials. The choice is in the individual member's hands no matter what party reaction is. In the USA Republicans who do not toe the right wing line are called RINOS - Republicans in Name Only. But the most that can be done is to rant. A religious association can have stricter rules, but your decision to abide by them or not remains yours. If this were not true, those here who were disfellowshipped would never and could never have abandoned Watchtower rules. In life there are no decisions without consequences.
Reasserting that there are many suicides is not proof. I would like to see some solid proof.
"But if someone else tells you who you can speak to, or associate with, or be friends with, that crosses a line to being a hate crime." How is that? If you attend a school or college, on enrolment you agree to abide by certain rules. The administrators have the right to enforce those rules. Your choice is to abide by them or leave. Is that a hate crime? When we're young, our parents may lay down more or less strict rules. Is it a hate crime if they limit our associations?
You're reaching for a definition of disfellowshipping that relieves you of the consequences for your choices. The exercise of the right to choose our associations is not a hate crime, even if the results are unpleasant. It is a basic right in a democratic society.
Another thought: Do you seriously think that individual Witnesses would stop observing I Corinthians 5 no matter what a court says? They are Bible believers, interpreting it literally. They will remain such despite any court decision.