And to make matters more complicated,

• Servo, as far I know, has no plans to be a browser. Instead, they want to offer an alternative to Blink (the Chrome rendering engine), so that other software can be made with it. This seems to be a common misconception.
• Ladybird's project lead and main developer, Andreas Kling, may or may not hold controversial views that some would prefer to avoid supporting.

I really want there to be more options in the browser market that aren't Blink based (or WebKit, sorry Apple), but the situation's tough.