It's illogical to say in Jesus dying for the Church that He didn't die for anyone else. This is called the negative inference fallacy. When Paul said Jesus died for him, it would be patently ludicrous that Jesus only died for Paul and nobody else. That would be an extreme form of limited atonement. When the Bible says Jesus died for the Church the context is the Church so naturally Jesus died for the Church. Don't assume then that Jesus didn't die for everyone.

Calvinists say they don't know who the elect are, so they give the gospel to everyone. But if you offer something to someone and you don't hold that thing to be offered you're being totally disingenuous. Therefore, the god of Calvinism can't save anyone because he doesn't possess what he offers.