Whoa, people.

Standard MCT at LAX is 1:30, not 2 hours.

AA-AA ID 1.30 FLT 1 - 6099 - FLT 1 - 6099

So this connection is right at the MCT but perfectly legal. It's certainly tight and doesn't leave much room for error, but it's far from the end of the world, completely do-able even with checked bags. Whether it's one ticket or separate tickets AA will just rebook you on the next flight if things were to go wrong. I wouldn't stress at all.