NATO is a collective organization, it is not approved by yourself, but by other 20-30 member countries. Greece left the military wing of NATO, in protest of the Turkish invasion of Cyprus at 1974. And to say YES, the Americans had to lift the arms embargo sales on Turkey. It is good to remember everything, and not that it suits us.
As regards the Sweden, while 29 of the 30 members are unconcerned by the move, Turkey views it as problematic.
Lets see the Forest(Turkish policy) and not only the Tree(Sweden and Finland).
Turkey was from 1952 to 2002 a very good ally for NATO but for the past 20 years, it has been a very bad one.
Turkey, pursues policies that are hostile to NATO, it’s aggressive towards NATO members, members like Greece and France, it engages in the invasion of Syria, it threatens Europe with Syrian migrant.
Erdogan's government sees Europe as a transactional relationship, has a long history of adopting a quid pro quo political attitude when dealing with western countries and institutions.
Finally, Turkey’s strategic importance within NATO remains unquestioned. It commands the 2nd-largest army in the NATO and is among the top ten countries for NATO spending. However, given its ambiguous stance during most NATO crises, there's a risk that Turkey’s actions may prove counterproductive in the long run.