We have to remember that Paul is writing to those in Corinth in the circumstances they found themselves then, around the time that Claudius had expelled the Jews from Rome.
Paul was not writing to the wider church, even less so to us, but to his good friends in Corinth, he had spent 18 months or so with them when he established the Congregation, and he expected persecution to come upon them, as they would all be viewed as members of a Jewish Sect.
His advice was for the time of this expected persecution, not any longer.
That is the way I see it, others will disagree, no doubt.