Games : Playstation Plus - Will different account subscription activate locked games?

I bought PlayStation 4 a year ago which was also my first PlayStation. My friend recommended that I should have two accounts.

1. UK Account for playing games with PlayStation Plus subscription.
   
   
   
   • Already have multiple free games.
   
   
   
   


2. US Account to buy games from the store.
   
   
   
   • Already bought few games.
   
   
   
   

This question seems like a duplicate but I didn't find a Q/A that specific.

Question: Now my UK account's Plus membership has expired. I don't see why I should keep both the accounts. I'm wondering... If I will buy Plus membership for my US account, will that unlock my previously 'owned' games I got through the UK account?