Instead of taking the hint, the MIL concluded that this was a good reason to start a conflict.
Given the existence of the aforementioned internet group, this is perhaps a prudent concern.
OPs complaint isnt that this person is her MIL, its that she is genuinely unpleasant.
Her reasons are her own, but this is just unpleasant and annoying behavior.
As with so many entitled people, the MIL didnt seem to realize just how off-putting her behavior was.
Because the first gift was the right one, there was nothing to complain about.
Instead, she dedicated that she would just give herself some drama so she can feel like a victim.
The fact that now she simply will be a victim of no gifts is just some poetic irony.