You’re latching on to what China did as an example and it forms the majority of your argument. I dont see anyone here suggesting we adopt a one child policy like they did, only reduce the amount of children being born.

Yes one could arguably bike everywhere and it would reduce your stress on the environment than if you drove everywhere. One could also argue having fewer people also reduces stress on the environment as well. Both will do the same thing, one to a greater degree.

It honestly sounds like you have children and are trying to justify your behavior despite knowing the negative impacts.