The intentions of laws with compulsory fees (taxation) and compulsory who marries who are based on good intentions (in the minds of those who create them).
In both cases, these good intentions are based on theft of basic rights. But, in the long term, how can you make society better off when your core beliefs are based on theft? ("Unlike both parties' ideologies, which are, indeed, crafted out of many different unrelated parts serving special interests.")
The "batshit crazy" ideals of libertarians is to base your good intentions on non-aggression: not theft.