This is just Russian propaganda. Ukraine weren’t even close to being considered for NATO membership when the special military intervention was announced. They’ve had a border conflict with Russia since 2014 and therefore they could not join NATO.

Ukraine is defending itself. Zelenskyy said “I need bullets, not a ride” and the west simply helped Ukraine with what they actually needed. It’s completely reasonable that Ukraine can use western aid to strike military targets within Russia that threatens their sovereign territory.