To answer the question posed by the OP, I really don't care about the personal beliefs of the teacher in any science classroom instructing my kids, so long as they are not teaching those beliefs in class.
Until and unless they start indoctrinating my kids, what they believe or do not believe is none of my business and has nothing to do with their job. Neither is what I believe and teach to my children any business of theirs, nor is it their place to teach my kids things that should be taught at home and/or in our chosen place of worship.
For the most part I agree, but I do think teachers should be committed to their subject matter if they are going to teach. I don't want a teacher teaching math who thinks Einstein's theory of relativity is unimportant or who doesn't believe it has any validity.
I don't want a biology teacher who disbelieves in Evolution teaching that subject.
I don't want a committed Marxist teaching economics.
I don't want a committed anarchist teaching Constitution.
I don't want a Holocaust denier teaching history.
I want teachers and professors from pre-school through all levels of higher education to teach information objectively and without prejudice and without dictating absolutes in anything. The best teachers give their students all the available data, statistics, known facts, theories, and possibilities and then encourage the students to use that to draw conclusions or do further research.
If science teachers across the land were teaching their students that there are nine planets in our Solar System, they were all wrong as of 2006 (?) once Pluto was busted back to dwarf planet wouldn't they. A good science teacher now says that we have so far discovered eight planets in our solar system and that is probably all that there is out there.
As I posted earlier, one scientists described science as an evolving process of learning and understanding. Born and Ridley have summarized my personal view thusly:
The fuel on which science runs is ignorance. Science is like a hungry furnace that must be fed logs from the forests of ignorance that surround us. In the process, the clearing that we call knowledge expands, but the more it expands, the longer its perimeter and the more ignorance comes into view. . . . A true scientist is bored by knowledge; it is the assault on ignorance that motivates him - the mysteries that previous discoveries have revealed. The forest is more interesting than the clearing.
Matt Ridley, 1999
Genome: the autobiography of a species in 23 chapters, p. 271.
There is no philosophical high-road in science, with epistemological signposts. No, we are in a jungle and find our way by trial and error, building our roads behind us as we proceed. We do not find sign-posts at cross-roads, but our own scouts erect them, to help the rest.
Max Born (1882-1970), Nobel Prize-winning physicist,
quoted in Gerald Holton's Thematic Origins of Scientific Thought