You're missing what I'm saying. Yes, the PEOPLE are the church - but just having a random aggregation of people in a Bible study is NOT a "church." The church - which is always and only local in the Scriptures, there is no such thing as any "universal church" - is a specifically organised body of believers. A church is a body of called-out believers, organised under the leadership of a God-called-and-church-recognised pastor, which fulfills the roles of evangelising the lost and edifying the saints, all to the glory of God. What these folks have in their home Bible study is more akin to a parachurch organisation - which are entirely without any scriptural support whatsoever.
Where does it say that in Scripture?
there is no such thing as any "universal church"
Really? You mean the Apostles had to pick a denomination?
which are entirely without any scriptural support whatsoever.
Your stone edifice and Bible college has no Scriptural support.
Acts 1: 4-5
4 On one occasion, while he was eating with them, he gave them this command: “Do not leave Jerusalem, but wait for the gift my Father promised, which you have heard me speak about. 5 For John baptized with water, but in a few days you will be baptized with the Holy Spirit.”
Acts 2:1-4
1 When the day of Pentecost came, they were all together in one place. 2 Suddenly a sound like the blowing of a violent wind came from heaven and filled the whole house where they were sitting. 3 They saw what seemed to be tongues of fire that separated and came to rest on each of them. 4 All of them were filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them.
>>- but just having a random aggregation of people in a Bible study is NOT a “church.”<<
So make up your mind. Either these people want to be a “church” or not.
You say they are not a church, but if they want to be a church, they need to move.
I don’t see where they ever claimed they wanted to be a church.