Tun Mahathir is all alone. With exception of a few close friends, most of his faithful lieutenant is distancing themselves with his action of quiting UMNO.
Most of UMNO MPs seems are staying put. Most of this 'carik makan' MPs would not want to sacrifice their political standing and status.
I regrets that Tun Mahathir quits UMNO. He would be a more effective dissenting person if he is 'in' rather than 'out'.
Best of luck Tun.