I feel like this is where a lot of NATO commentary gets bogged down. There's a large group of people, conventionally referred to in US media as "the blob" (https://www.vox.com/22153765/joe-biden-foreign-policy-team-r...), who believe that the United States has an affirmative duty to engage in lots of global military interventions above and beyond the actual commitments it's made. I don't think they're lying - people seem to genuinely believe, for example, that the US is betraying NATO by cutting off support for Ukraine when most NATO members would prefer to expand support. But the North Atlantic Treaty simply does not contain a promise to align foreign policy in this way.