You aren't being accurate

You CONTRACTUALLY AGREE to wear a seatbelt. I thought conservatives liked contract based law

You won't be REQUiRED to purchase health insurance. You will just be required to not be a parasite on the general body politic in your failure to do so. So you willl have the CHOICE to NOT purchase it, and pay the premiuems via taxes, or purchase it YOUR CHOICE

You can eat foods that are deemed unheatlhy (odd that you don't have the same feeling about pot) - its just that the sellers - like with pot - will be regulated

But that said, net net all of those changes are good for the "fabric of society":

• having 75% of the prison population be there on "drug" (as though booze isn't a drug) related trafficking charges is a HUGE cost to society and the "social fabrik" of society
• Denying Constitutionally protected rights and removing the religious preferences for one style of belief is Good for society. and there is no harm associated with gay marriage
• Engagement with the PRC is a strong contributing factor to the expansion of a more liberal economy and more liberal politics. Why then do we treat Cuba in a manner that guarantees a repressive Governmet can remain in power