Two more friendships bite the dust

Honest email debate with a couple over pandemic related issues. We have been friends for 8 years. I respond in detail with my views which are so different to theirs . Their response is cold. This is painful.

How do I reach a more accepting and neutral place in relation to this?

C Polite email response saying “Bon Voyage and Cheers”
T If only I had kept my mouth shut. I’m sure I will never hear from them again.
F Sad, regret, grief
A None
R Friendship over