Many people have misunderstandings. They believe that the P5 can block the UN resolution because it has the veto power. In fact, on the contrary, because they have the ability to block UN resolutions, the UN agrees that they have the veto power to avoid unnecessary consumption by P5.
Therefore, whether to cancel the veto power of P5 will not actually affect the ability of P5.
The core right of P5 comes from the right to make proposals, which means that without P5 to make proposals, any opinions will not be discussed by UN, which is the special right to P5 can use the name and power of UN.
P5 also has the right of compulsory action, which means that P5 can legally use force without UN authorization.
The reason why I say that Japan and India are not eligible to become permanent members is that the United Nations can implement resolutions in East Asia without Japan, and the United Nations can implement resolutions in the Indian Ocean without India.
Since they are dispensable, why give them rights? Because India bought French Rafale?