Comment by avmich

These are all different rockets, several not interchangeable by mass - e.g. Electron is pretty light, SLS is pretty heavy, some others are still smaller than Falcon 9. We'd like them to prosper, we don't have enough launchers - but to replace the capabilities of retiring Falcon-9 - not to mention Falcon Heavy - many of those rockets will have to demonstrate reusability and ability to launch frequently, which might take time.