I go by their actions. When a party loses its collective mind because they lost an election... to the point where they trash the Capitol and try to hang the VP, a member of their own party... that shows me that the Dems have a long way to go before they match the childishness of Republicans.
That doesn't mean we should not hold individual Dems responsible when they do stupid things but let's not get carried away. The Repubs at this point are nothing but whiny brats in thrall to racist, rapist, con-man.
Let me know if you are still confused.