They emphasize (in good faith I might add) that certain actions, such as censoring the opposition, canceling elections, or jailing people without due process, are inherently undemocratic and would destroy democracy if allowed, regardless of the intentions behind them. The argument is that democracy must adhere to its own rules and principles, even in the face of threats, because violating those principles in the name of protecting democracy ultimately leads to its destruction.
You can’t “protect Democracy” by violating its core tenants.
I feel like your arguments are more whataboutism than substantive.