be here to stay
To be permanent or firmly established; to be a normal part of everyday life, especially after once being considered abnormal or unusual. A lot of people see the ubiquity of the Internet as the death of face-to-face communication, but at this point it is very much here to stay.
here to stay
Permanent or established, as in I'm afraid the uncertainty about energy costs is here to stay. [First half of 1900s]
be here to ˈstay
, have come to ˈstay
be accepted or used by most people and therefore a permanent part of our lives: It looks as if televised trials are here to stay. OPPOSITE: here today, gone tomorrow