[parallel]

Words work because we agree what they mean in advance. You can't redefine "shelter" to suit your argument. Just make it with the standard definitions of words.

[rogual]

Would you consider that a non-standard usage of "shelter"? I had a quick look online and I'm seeing definitions like:

a position or the state of being covered and protected

a shielded or safe condition; protection

a place giving temporary protection from bad weather or danger