Here’s something I wrote a week or so back about this:
I am talking specifically about people who:
- are claiming that a young earth is supported by scientific evidence;
- are citing arguments for a young earth that do not meet scientific standards;
- should be reasonably expected to know that their arguments do not meet scientific standards, either through having a science degree or having had it explained to them in terms that they understand;
- are persisting in citing those arguments as scientific evidence despite having been made aware that they are not.
Hope that helps.