The 1st Amd. specifically prohibits "congress" from passing sertain classes of laws — so even if it were incorporated against the States it should have no effect… unless you care to explain (a) how the incorporation is a magical process that alters the text, and (b) how such alteration cannot be used as an engine of tyranny.
Most states have 'legislatures' or 'assemblies' as their legislative-body -- I cannot think of a single one which calls theirs a "congress".