Interestingly enough, it was never directly stated that Ace was the son of Dragon...
10/4/04 - 8/20/07
No, just implied with him and Luffy calling each other brothers.
Plus, the fact that he hates his dad makes more sense if his dad abandoned him to play revolutionary instead of his dad being executed before he was even born. Unless there's more backstory there, it's not really Gold Roger's fault he wasn't around for Ace.
thats because luffy is the son of dragon didnt they clear that up earlier?
I'm not sure what either of you are trying to say.