I think you mean Prop 71 instead of 107. I voted no on Prop 71. I like the idea in principle but didn't like the requirement to gather signatures from all districts.
Instead, i would have preferred to see a bill making it harder to pass amendments, moving it to 60% or something similar. That said, a lot of the progress the state has had would have failed under either requirement. Min wage increase, end of life, recreational pot, etc.
I have never said to myself "wow, we propose and pass a lot of amendments that should never have seen the ballot in the first place". And if we did, i want to see the ideas. Keep proposing easy and make them need more voter backing to pass.
Details: https://ballotpedia.org/Colorado_Imposition_of_Distribution_...
My understanding is that 71 won't restrict propositions or ballot initiatives. I read 71 as specifically restricting future amendments.
Now the usual suspects lined up against it, and that's who NPR interviewed: the Christian right out of Colorado Springs. However, I saw more opposition to this in my middle class gentrified neighborhood than I saw support or opposition for any measure, except maybe the tax measure to support the cultural district. This neighborhood is anything but conservative and this is one of the rare cases where seeing signs on the neighbors' lawns made me look deeper and actually change my vote from the reflexive "yes" to a "no".
The good news out of this election is that Prop 107 passed, which makes it harder to get constitutional amendments on the ballot. One of the things I dislike about living here is how the state is used as a political laboratory for everybody's pet poli sci project.