Just thought I'd chip in with my $0.02 since everyone seems to be telling you you're a shit person because of your fall out with your dad.
I absolutely don't agree with them.
My grandma voted leave, despite the fact that one of her children, their partner, and their two kids live in the EU (me and my family that is). During the whole build up to the referrendum we tried to point out to her why we didn't want her to vote leave, how it would affect our lives etc. She lied the whole time and kept telling us she wasn't going to vote leave and she understood it would end up bad for us and all that jazz, and then she went and voted leave.
Fine, vote leave, that's your personal choice - but don't lie to us and then make out like we are the bad guys when we're upset that you couldn't be truthful about it, you know?
The cherry on top was when she started to say that she didn't understand what she was voting for because "everyone was lying on both sides so I ignored what everyone was saying and went on gut feeling" (but at the same time that she didn't regret her vote). This is despite the fact that we had long conversations with her about how it could affect us, and also despite the fact that she was arguing the toss with people all over Facebook in the run up to the referendum, posting things and commenting on other people's post. She was clearly NOT ignoring everything like she said. So either she's thick as pig shit, or she's lying again. She was also married to a very proud Irishman who is probably turning in his grave right now over the situation that Ireland has been put in, but you know. She only aknowledges that when it suits her 
And then people wonder why families can be torn apart by this?
Anyone who thinks that family relationships being strained over Brexit is stupid is clearly living on another planet, even if their own relationships aren't strained.