To say there is no provable truth is in and of itself an argument of what is true. And who by expressing and sharing their views is forcing them on others? Arguing and discussion is a volunteered effo...
It's binary, so it is either provable or it isn't.
Secondary sources of information are going to seem objective to some, subjective to others.
Secondary sources of information are going to seem objective to some, subjective to others.
1