Join my union if you are worthy

IF you think that your the choosen one than read this message other wwise leave immediately while you can:

 I wAnt some membaers to join my union but not any members, the choosen members

YOU will be now thinking that who are the choosen members to get the answere join my union

is'nt it simple

I wAnt some membaers to join my union but not any members, the choosen members urperyani

You had me at membaers. 

You put the apostrophe in between the wrong letters.

Is that what the choosen membaers must to become chosen members?