Yes it is if it was the case that the whole purpose of the neighborhood watch was to contain me, and breaking into your house was in my view the best defense against allowing you to contain me.
Russia has a history of raping, pillaging, and stealing land from their neighbors with NATO acting as the only (somewhat) successful defense against that so far.
Your idea of ‘containment’ in this sense means you’re defending the equivalent of a gang of serial rapists and murderers entering innocent people’s homes, taking their families hostage, and saying the home is now theirs.
I'm asking seriously: do you really believe that if Ukraine ever joined NATO (which is dubious as they already requested in 2008 but their request was denied), it would actually attack Russia?
The question is whether NATO would attack Russia through Ukraine. And if you don’t think that’s absolutely possible you need to read history books. I think it’s actually very possible it will happen within the next few years, in fact, given the rhetoric coming from the UK, Baltic states and some other EU countries.
So explain why the countries neighboring Russia are building all possible border fortifications, spending large sums of money for something that would make any invasion much more difficult.