Natural fusion in the heart of stars requires massive amounts of gravity.
The will not achieve the required energy output with lasers.
Magnetism, maybe, but not lasers............
I did some digging and found the LLNL lasers are 1% efficient and require an entire day to cool after producing the 1 excess MJ. So really they put in 200 mega joules to get 3 out.I share your skepticism on viability as there are huge engineering challenges in laser efficiency but this is still a major hurdle overcome especially considering their yield increased from the first experiment.