I disagree with, Appeal to inescapable assumptions. My specific reason is that I think it would insulate physical materialism from the main type of argument you can make against it. I see empiricism as a huge, impenetrable fortress built on assumptions that are reasonable but not necessary. Interestingly, while appealing to the possession of different assumptions, I probably would appeal to humility, personal choice, etc.

so some "assumptions" are right and others wrong.

An assumption is still an assumption. Some assumptions are more natural than others in the context of a scientific worldview, however, we haven't established that the scientific worldview is applicable always and everywhere. If anything changes -- for example, if reality is far more strange than we anticipate -- then as a culture and a society we need the flexibility to reconsider assumptions.

Also, did you mean, 'appeal to escapable assumptions'?