A family is a risky venture, because the greater the love, the greater the loss... That's the trade-off. But I'll take it all.

This quote is saying that being part of a family is a risky endeavor. It can be risky because when you love people more, you are more likely to be more upset if something bad happens to them. But, despite this potential risk of suffering a great loss, the speaker would still choose to have a family because it is still worth it for them.