Madhabs are inevitable. They were not intended to be like they are now. Madhabs astarted as schools of thought, like thesis of scholars on particular problems.
Its also simplistic to think that the 4 Imams formulated the 4 madhabs. A lt of work in every madhab was done b the students of imams.
We should consider the madhabs as different facets of our religion and embrace them all. This should not be limited to just 4 schools only, a lot of work has been done by scholars who were contemporaries of imams or their students, we should not disown them too.