Of course this is not about getting Leftist permission for anything, but YOU must be convinced of the moral and legal superiority of you argument AND must be prepared to answer the Left when challenged.
And your moral and legal high ground is easy when you base your argument against the feds on the Rule of Law of Constitution, an objective standard as written and originally understood and intended, and , which validates or invalidates federal action, REGARDLESS of PERSONAL moral views.
I agree completely.