The UN has not resolved that the Russian Federation is the Soviet Union w.r.t. veto powers. It's just been assumed. For the PRC there was an actual vote.
Ukraine legally has just as much of a right to the Soviet Union veto.
The Russian Federation is a direct successor state; the PRC was a much murkier issue at the time.
I don't think the RF can count as a direct successor state when Ukraine was also a member of the USSR.
The UN has not resolved that the Russian Federation is the Soviet Union w.r.t. veto powers. It's just been assumed. For the PRC there was an actual vote.
Ukraine legally has just as much of a right to the Soviet Union veto.
The Russian Federation is a direct successor state; the PRC was a much murkier issue at the time.
I don't think the RF can count as a direct successor state when Ukraine was also a member of the USSR.