Is being gay really that different to being straight?

Maybe that question will offend some people but I genuinely don't know because I don't separate the two in my mind that much.

I know there is more prosecution and there used to be a bigger scene for the first because of that taboo aspect, and with the second the relationship can be taken further by having children together and how the dynamic changes there.

But otherwise I wonder if we big these things up as being more different than they are?