Of course lightning is a far weaker system than Bitcoin offering far less security and censorship resistance. It's designed that way swapping security and censorship resistance for scalability. If you need Bitcoin level security and censorship resistance pay for an on-chain Bitcoin transaction.

Additionally, if lightning ever proofs to not work good enough it can be disregarded altogether. Finally several lightning-like protocols can theoretically exist at the same time (although winner takes all seems way more likely, but perhaps there exists some niche with different requirements).