It is not for anyone to 'prove' that consciousness does NOT survive death, but rather for those who suggest that it DOES to offer evidence.

Skepticism is about just not being satisfied with unusual claims....if we skeptics were required to DISprove every metaphysical assertion, we'd never get anything else done.... and those who 'believe' would challenge each one. There's no end to the debate if anyone asserts that they know something to be true...or not true.