I think that you have it backwards. It's more removing control by those who are religious over those who either have a different religion or none at all.
That's one view. But it's not the one OB is putting forth.
One controls or the other controls. If you remove my control, then you're in control. Or there's no controls and a free for all, but this is not workable in a society. There's going to be a point of view that controls the legislation. Whose standards do we use?
So you can think what you want. And do what you want. Within your group. And you need to realise that there's a lot of overlap between groups. I'm not in yours, being an atheist. So your group's rules don't apply to me. But...you're in mine, being someone who is allowed to vote and who agrees to abide by the laws that those we vote in formulate. So our group's rules apply to you.
Actually some of my group's rules do apply to you. There is overlap both ways and we can all be thankful that there is.
And...yours is not just yours, but also mine, as we're all on this globe together. I get to vote my conscience and you yours. The one with the most votes wins. So whichever group is in control makes the rules that apply, as far as those rules can apply. A point of the OP was how secular thought has been changing religious thought. But this is not in all of the religious and won't be. Paidiske made a point about conscience and it is a good one.
As discussed elsewhere, the Church is not subject to secular law. It does not have to and cannot conform to secular law that is not in accordance with ecclesiastical law, or it ceases to be the Church, which is an agenda of some of secularism.
Secular does not conform to religious in many matters and does not subject itself to religious. Neither group has a lock on non-conformity. And, at the end of the analysis, I doubt you or any of us are completely conforming to what we don't agree with.
This is all about differing worldviews. Living in societies means dealing with these differences. There won't be the free-for-all of no laws. There won't be consensus in worldview or where we get our standards. You don't want to be under religious control, nor does religion want to be under your control.
Solution?