The context for Ukraine wanting to be in NATO is that everyone in the region has been under constant thread by hostile nation looking to rebuild its empire.
If US attacked and annexed several Central American nations over last two decades, except the ones who are part of pre-existing "defense against the US" alliance, Mexico wanting to be in it would be perfectly rational and normal.
If US attacked and annexed several Central American nations over last two decades, except the ones who are part of pre-existing "defense against the US" alliance, Mexico wanting to be in it would be perfectly rational and normal.