Is it inherently wrong to have a representative government, since it always, always leads to immoral law?
Is the best form of government from a moral perspective to rather have a theocracy/Papal monarchy with the Church ruling the world? I know it is not likely to happen, with few chronological and geographical exceptions, but entertain the idea. I also know that even if this were to happen, the system would still not be perfect, but I am almost certain that the following would be illegal:
baby murder
euthanasia
nasty groups trying to force public money to fund immoral acts
homosexual “marriage”
etc.
And to add to your list, we’d have great policies and regs to help us reduce our greenhouse gases and other pollution that kill people (as JPII and BXVI have been saying we should have).
Of course, there will be plenty of people violating the laws and regs you listed above and the environmental ones. I knew of several cases of women having abortions when they were illegal (including my grandfather making my grandmother abort my father’s sibling).
But what I’m thinking it this. Forcing people to do the right things and avoid the wrong things does not really help their souls, since their intent to do bad things is itself a sin (tho such forcing compliance would reduce harm to others). I think it is important in God’s eyes that people willingly, eagerly, and out of love for God and others do the right things, do God’s will. They say God gave us free will (what was He thinking

).
It is extremely frustrating that people all around are doing the wrong things, but I’m thinking it puts the burden on us regular people to inspire them to do the right things, by our own lives of holy sanctity and sacrifice. And that’s very hard work – including making acts of contrition and going to confession whenever we slip (which for me is often), admitting our mistakes openly, being humble (which is a real toughy for me

).
The Secular Carmelite (OCDS) way is to be little and be good in the world, and draw people to us and our ways. I don’t even know if I’m having any impact at all. Sometimes I think I’m having a negative impact.
I think of Jesus at the end of his ministry during the crucifixion, even his disciples fleeing him. “Oh God, oh God, why have You foresaken me?!” (It’s bad enough to suffer, but to suffer what seems to be pointlessly, that is a terrible anguish.)
I think if we live with Jesus in that moment, not foresaking him but with him there suffering a similar existential suffering (on top of our daily trials and tribulations, joys and blessings) that may be a good thing – offering that suffering up to God for the greater glory of His kingdom.
We might not have much impact on changing the government and its laws and regs to the holy, virtuous way of life, and we might not be able to influence others around us much, but we can keep striving to change our own lives to that way, seeking forgiveness and mercy when we slip.