Of course one can question the scientific method. That you do not think this is possible, or that it occurs demonstrates that you do not know the relevant facts regarding the method. In being trained in scientific methdology one is not just encouraged to question the approach, one is required to do so.
And the remarkable thing is that the method works. You are reading this right now because the method works.
Carbon dating can work effectively out towards a maximum of around 50,000 years. No scientist. Please re-read that, No scientist would ever push it as a reliable method for items likely to be millions of years old. Pseudo scientists? Of course, charlatans, fools, con-artists, any and all of them might make such claims, but those have nothing to do with science. There are a multiplicity of well established dating methods for dealing with older rocks. Again, your ignorance of relevant information is a sad comment on the extent and infallability of your knowledge.
I have no idea why you are bringing up this red-herring of pseudo science. It's almost as if you have two categories of science. Orthodox science equals things that agree with your beliefs. Pseudo science equals things that disagree with your beliefs. It doesn't work light that.
And again, science arrives at the best available explanation based upon current information. All explanations are subject to change. Deal with it.