They might sound good Hand. But they are policies

You cannot insert your policital manifesto into the constitution!

It is not logical, it goes against every principal of democracy. With a constitution, you create a state and you set out the roles and functions of the parts of the state. You insert safeguards, you regulate for instance how laws are made.

If you insert policies, how can they be challenged under case law? In fact, how will the legal system work under a policy-based constitution?

This is dictatorship by the back door.