Have you tried sending large amount with #lightning?
Also you say: “I want my transactions, be they money or others forms of data, to be recorded on the longest-running, most secure and decentralised network because it is the most resilient to attacks.”
I’m sure you understand this but when using lightning the security assumptions and decentralization is mostly those of the lightning network not the #Bitcoin network. As you probably know, lightning isn’t very decentralized. Also, lightning total transactions volume is a small share of those occurring on the base layer or with wrapped #BTC. So again, it’s not proven that lightning can scale Bitcoin transactions.
Finally you say: “We're not going to take another blockchain that made immediate trade-offs for immediate solutions.”
Isn’t the exactly what #BIP300 and #drivechains will prevent us to do? What you say here seems in contradiction with your opposition to the concept of #drivechain.