lol those threads are always fun
I converse with a lot of people (outside of family) who I know don't share my views - I've given up trying to convince people outright but drop the occasional line that makes it clear that I disagree/view things a certain way.
It's often harder because you either know or might have first hand experience of said family members being kind/caring or even having helped you directly. Sometimes I guess it just depends why they vote how they do and if you can shelf it whilst still occasionally challenging them without fisticuffs/saying you won't speak to them ever again.
As I said in Scotland a lot of it is to do with the Union. Some people voting Tories who don't even really like or support them feverishly just to try and keep the UK together. Look at the 2015 SNP result to see what happens here when Scots think indyref is dead. "We better vote on policy again!".
Don't get me wrong, if I had Rangers Orange Order loyalists in my family who take part in the marches/go off to Ireland to do so, they'd be "deleted" from my life. Thankfully, while I have Rangers fans in the family, the majority are Celtic and those that are Rangers aren't total Orange Order nutters.
Sectarianism is a cancer in this country, but I'll take fans of either club who aren't total bellends if I have to.