Ah a wordsmith? You always seem to want proof. What proof do you offer? Just an anti-Catholic bias (from one who is a baptized Catholic).
A founder - One who establishes. To take the first steps of building. The leader in establishing an organization based on principles with Christ as the Head and the members as the Body of Christ.
A Builder. One that builds, esp one that contracts to build and supervises building operations.
So did Jesus stay around to direct and supervise the building? Of course He sent the Holy Spirit to guide the Apostles and their successors to grow and build the Catholic Church by spreading the Goods News. They did a good job in growing His Church in spite of some heresies that led people away from God.
Scripture.
You are claiming that it's the Catholic church that Jesus meant.
If you are making a claim that something is a fact,then it's YOUR responsibility to prove it's true by providing the evidence, not for the other person to prove that your say so is not true.
Your opinion on its own, doesn't amount to a hill of beans. Verification is needs for it to have any credibility.
One...
True...
Church...