I am aware that this is your opinion, but of course Scripture doesn't say this.
There is but one Church (actually Assembly) founded by Christ. It is composed of all those of all ages, who have entrusted themselves by faith to Christ's sacrifice for their sins - and apart from any claim of self righteousness.
This will include true believers from many denominations, including yours.
[18] And I say to thee: That thou art Peter; and upon this rock I will build my church, and the gates of hell shall not prevail against it. [19] And I will give to thee the keys of the kingdom of heaven. And whatsoever thou shalt bind upon earth, it shall be bound also in heaven: and whatsoever thou shalt loose upon earth, it shall be loosed also in heavenMatthew Ch 16.
Or did Luther excise that from your "bible" also?