pull down to refresh
LSPs by definition cannot centralize the lightning network. Centralization is a matter of control. LSPs do not control user funds, the only thing an LSP can do is choose to serve you or not. If they choose not to, just don't use that LSP.
Do not confuse popularity with centralization. They are not the same. A popular service that has no control of your funds or your actions is not a central point of failure even if most people use it. If the most popular LSP in the world begins censoring certain transactions, even that doesn't make it centralized. It is just a signal on the network that there is demand for a new service provider, an uncensored channel to whatever destination the "bad" LSP tried to censor. Anyone can create that connection point easily, so LSPs effectively have no power.
Not the same seed no. That's BIP85 (child seeds) which Blue Wallet doesn't use. You can however do this if you create them using your own hardware wallet and use Blue Wallet as a watch-only for their xpriv
Relevant reading: https://petertodd.org/2016/multiple-implementations-consensus-systems
Reimplementing Bitcoin Core is generally a bad idea.
This is the right approach. Good persuasion always starts with something the person really cares about, not something you feel like they should agree with.
Point 4 in @k00b's post is going to be more persuasive than the first 3 points even though there's less truth to it, because they all believe that's a huge problem.
I think another point along these lines would be to bring up undocumented workers. Talk about how Bitcoin makes it much more difficult to identify and deport them, as well as making it much easier for them to send remittances home.