Insisting that you are right and the others are wrong has never changed anyone’s opinion.
Repeating the same arguments, only louder, doesn’t work, either.
Making fun of someone’s argument won’t encourage anyone to re-consider that argument.
And decorating an argument with sarcasm (even when it’s hilarious) won’t open anyone’s mind to that argument.
I’ve always found it way more helpful to assume that the other person is at least as smart as I am and that there’s a reason for why they don’t see what (I think) I see.
Another helpful attitude when you want to change someone’s mind is to be open to changing yours, too. Getting it right is so much more useful than being right at all cost.