I created a Google developer account with a separate email due to warnings like this. Then Google closed it because I left it idle too long and I didn't get the warning email. Sometimes you can't win.
Depends on the car, mine (Polestar 2) uses regen braking regardless of whether one-pedal driving is selected. The consensus seems to be that coasting is slightly more efficient but barely enough to make a difference.
In my previous job writing a naval combat system (not Aegis) I figured that I couldn't prevent warships from existing, but I could make the combat system better, safer, easier and less error-prone to use which would ultimately reduce the likelihood of people being killed inadvertently. But I totally respect people who choose not to work in defence.