Reforming the USSR is western media propaganda.
100% NATO expansion is all about containing a non democratic state in Russia, the west mainly the US has used democracy and capitalism to basically control and exploit any country who signs up for it as freedom. As it did in Ukraine in 2013
China and Russia are undemocratic authoritarian capitalists much harder countries to control and exploit. They are no better than the west, they to are only looking acting in self interest, but lets call it out for what it is. The western world is being challenged for the first time since the soviet era ended, not happy with its downfall, they are looking to surround and retire the threat of the soviet creator in Russia, how anyone thinks its a good idea for Putin to let this happen is just plain brain washed with the global double standard they have grown up with. He has every right to recognise the threat, US and NATO won't be happy until him and China are brought into the traditional global pecking order, where they are the main beneficiaries of any positive economic potential in their countries or whatever state identified.
Finland is a real problem, this could get out of hand, neutrality is the key to peace there, not joining nato, an agreement where they are guaranteed future peace for remaining neutral is the key, joining NATO will only bring about another invasion and potential war.
Boris needs to keep the UK out of it, hopefully its just posture, but Putin will escalate soon. This could end in a third world war which will go nuclear, the west needs to arm the current neighbouring states nato states, not signup new ones.