Exactly. Paul wanted a Christian Church. Nothing about Jesus talks about establishing an institution.
Apart from all the great exhortations to love one another and to care for the poor and downtrodden etc., I wonder what a Christian church would look like based solely on Jesus' teachings (assuming we know what the actual person taught as opposed to stories handed down for decades before being written down.)
It's so fascinating that Christ sees himself so often as separate from God in the Gospels. He always prays to "the Father" and to my knowledge never makes the claim of homoousiosness with God. But clearly he notes that he is the Way and the Path to the Father so he (per the gospels) clearly sees at least an intercessionary role for himself and a special relationship with God.
Would Jesus have been in agreement with Paul that the Gentiles need not convert to Judaistic practices to be Christians or would Jesus have been more in line with the early Jerusalem Church? Does the Johannine Comma establish the Trinity? Are these things part of Jesus' true concept of his church which he establishes in Matt 16:18?
Religion is easily one of the most fascinating things to watch evolve and all religions do seem to evolve as times change and conditions for the faithful change.
I think of Christianity's best being the teachings of Jesus around peace, love and understanding as well as loving one's enemies etc., and as an atheist I don't have much need for the supernatural bits, but there's a lot of value in the teachings. There's actually a lot of really good stuff in the NT (and some not-so-good stuff) which I think can be useful to people without the need for all the religious infrastructure built up around it. But I also wonder what the founders of this religion actually intended for it to be.