Lil Wayne -- I Back My Daughter in Young Thug Beef (VIDEO)

Lil Wayne and Young Thug's war is so heated, death threats are already flying -- but Wayne has no problem with his 16-year-old daughter getting in the middle of the feud.

We got Weezy outside Avalon Hollywood and asked him if there was any shot at chance for squashing the beef -- especially with The Game and Thug threatening to go ballistic.

Watch the video ... Wayne was NOT in the mood to talk peace. In fact, he took the opportunity to applaud his daughter Reginae's tweets blasting Young Thug for originally naming his mixtape "Carter 6" (a clear shot at Wayne's long-delayed album).

Blood IS thicker than beef.