Sometimes terrible people can do good things.
Those good things should be supported.
Judge a project on it own merits.
The thing here is that Ladybird and SerenityOS are both the community and the code. One cannot live without the other because the code will always need its community to develop it. And in this case, it is not possible to support them without supporting the people who, y'know receive the money. I think nobody is arguing against an independent browser engine - the argument is against the implementation of it.