if people aren't able to abandon others with toxic views there will never be real progress. Its incredible that some people really feel like they can separate peoples political views and still look at them as some loving person etc.
I cant do it, and I refuse to do it regardless of who it is family or not. Its the same reason today the only people see bad people being steaming at the mouth racists, bigots, etc rather than complex people who can love their kids, love their wives be apart of their community and will have extreme views about people who they dont see as equal worthy etc which still means yes they are bad people despite some expressions of feeling to their own personal group.
This is the largest problem in society today and honestly if you aren't willing to go as far as leaving people behind for their abhorrent views they will never get the message and in the end you will suffer as well for it.
And OP you really cant approach or appeal to someone who is clearly emotionally invested with anything but a strong emotional response in return which goes as far as just severing ties with them. Its like arguing with someone who has strong religious beliefs no amount of logical dialogue can counteract intangible beliefs.
So its up to you to see them as a complicated father who has terrible views against anyone other than his own kin and accept it or be the change you seek and go on with your life with not as much to do with them to help break the chain of poor views.
Maybe they will understand how you feel when you arent around to listen anymore and if those kind of views are worth not having their child around anymore and maybe with that kind of emotional impact they get out of the crazy hole of conspiracy.
This is a prime example of it from the opposite way.
https://www.washingtonpost.com/nati...50061aa9fae_story.html?utm_term=.5b215eb7ffdb
this kid was as toxic as his parents and his family with white supremacist views and many of them disowned him when he gave up those beliefs.