I recommend not sending a letter that can be used against you.
What I tell former friends.
You and your ideology of the far left are a threat to my freedom and liberty.
Don’t forget to add that the 2A was added SECOND in the Bill of Rights for a reason... to protect 1A - free speech - you friend’s right to express his views.
I don’t have any “liberal” or leftist friends. The ones I did have I now consider enemies. There are plenty of people who share my views who I consider friends. Life is easier that way.