.. though some members did, but not under NATO’s writ.
In Ukraine too, nations are helping not under NATO's writ. That is sheep's clothing, camouflage. Does it fool anyone? NATO is in a proxy war with Russia and Ukraine is the proverbial goat.
Horseshit. NATO has fuck-all to do with Russian agression against Ukraine. If Ukraine had joined NATO before Russia invaded, Putin would never have dared invade. They didn't, so NATO isn't involved.
NATO only gets into wars if and when a NATO member state is attacked. That's literally in their charter, as the ONLY reason for NATO to be involved in a war; And if, as, and when
any NATO member state is attacked,
ALL NATO states are required, and have promised, to get involved.
Ukraine is not a NATO state. Any NATO state must therefore decide for itself whether, and to what extent, and on which side, they get involved in the Russia-Ukraine war.
That none have chosen to back Russia is a consequence of Russia's actions being morally reprehensible, and in no way reflect NATO policy, NATO treaty obligations, or NATO membership.
Until and unless NATO is attacked, NATO is not involved, except in the fevered imaginings of a Russian dictator who yearns for the halcyon days of the Cold War, when Russia was at least feared, if not respected.
Russia (and the Russian military in particular), as a pathetic object of ridicule, is Putin's greatest fear, and is also entirely his own fault. Until he demonstrated its impotence by trying and failing to reach Kyiv, everyone was worried. Now they are laughing, and Putin (like every totalitarian since forever) hates to be ridiculed more than he hates anything else.
He just hasn't grown up enough to understand that the only way to avoid ridicule, is to avoid being ridiculous.