“The way they defeated the aliens in Star Trek Beyond is unrealistic!”

For your convenience, here is a list of some other ways Star Trek villains have been defeated:

• By Kirk reciting the Declaration of Independence really passionately
  
• Kirk literally fighting himself
• Kirk fighting himself again (this time while Spock watched)
• Fat tribbles eating the problem away
• Dr. McCoy applying mortar to an acidic rock creature
• Spock mind-melding with a probe
• Literal whales
• The power of love defeating V’ger
• Spock killing Kirk instead of having sex (Kirk got better)
• An omnipotent being got his ass grounded by his parents
• By doing literally nothing and history happened the way it would have anyway (plus there was a cat who turned into a hot lady)
• The crew dressed up in suits and threatened to shoot gangsters
• Kirk explaining birth control to an overpopulated planet
• By making children cry

So you see, Beyond is actually well within the Star Trek tradition of ridiculousness. 

• “I ripped my shirt again”
  
• “If an earth girl says, ‘It’s me, not you’, it’s definitely you”
  
• “I am fully conscious, Doctor, I was merely contemplating mortality”
  
• “Put your phaser down!! please”
  
• “’Do you even know what it looks like!?’ ‘It’s that square thing, right?’ ‘It’s round!!’”
  
• “I have a nose for danger” *walks into a trap*
  
• “Montgomery Scotty”
  
• “’You gave your girlfriend radioactive jewelry, how romantic,’ ‘It’s harmless, but it does emit a strong signal,’ ‘You gave your girlfriend a tracking device!?’ *pause* ‘That was not the intention, but yes’”
  
• “Don’t break my music!”
  
• *Beastie Boys starts playing*
• “You know, Scotch was actually inwented by a leetle old lady in Russia”
  
• “’Sulu, can you fly this thing?’ ‘Are you kidding?’”
  
• “He likes that chair”