That is the way it is supposed to be, but Darwinists do not permit any unorthidoxy. They fight and use political muscle to enforce their views.
That is why they dismiss the idea of intellegent design out of hand and call anyone who even reads about it a heretic.
When was the last revision to Darwin's theory of evolution as interpreted by the "priesthood" of professors accepted by them?
Neuton's theory also has only been revised since he is dead and can't defend himself.
Darwinists fight feircely to defend their ideas. They do not discard anything.
Please give an example of this.
What is there to defend?
Newton's laws of motion and gravity are true unless you're dealing with very high speeds or very large masses. Einstein's equations agree with Newton's for all "practical" purposes.
The real reason Newton's theory is no longer considered totally accurate is that experiments and measurements of natural phenomena more closely agree with Einstein than Newton. EG, the motion of Mercury.