We use synthetic biology to modify what is already available in nature and then call it "synthetic lifeforms" but it is like a cheap knockoff of the original with barely functional system.

All of these "synthetic lifeforms" I have seen are usually very gimped and nowhere as robust as a normal bacteria. It is still an ongoing effort to make a real, designed from scratch, comparable bacteria that can match the original. But speaking as someone who worked on these things, I would not expect any major breakthrough soon.