Show us a real example of something that your putative non physics science can do that physics cannot, in a way that would be comprehensible to a sufficiently open minded science.
It seems unlikely you could suggest a concrete alternative to physics which explains observable phenomena as well and making generalizable predictions. Showing this would move your theoretical philosophy. In the meantime the rest of us will stick to physics because nobody has a coherent alternative which explains our observations.
> Show us a real example of something that your putative non physics science can do that physics cannot
I just did. Please reread my post. Physics cannot claim to be "all there is", as that is not a proposition that belongs to physics, but to philosophy. And philosophy cannot make this claim, because it would be self-refuting.
As far as observables are concerned, physics can only deal with what is quantifiable. So anything that isn't quantifiable is by definition beyond the grasp of physical methods. It is circular to say that all that exists is that which is quantifiable. It would be putting the cart before the horse. Some call this the "streetlight effect".
It seems unlikely you could suggest a concrete alternative to physics which explains observable phenomena as well and making generalizable predictions. Showing this would move your theoretical philosophy. In the meantime the rest of us will stick to physics because nobody has a coherent alternative which explains our observations.