You are close but not completely right. Jesus came here to die for the “world” (meaning everyone) but ONLY the ones that believe are saved. Paul says that Jesus died so that ALL may be saved.
Paul was right, all may be saved, but not all will be saved. God definitely wants all mankind saved, but all are able to reject His salvation if they so desire. Christ founded a plan (religion) by which salvation was guaranteed and it was toe Catholic church....to kid yourself into thinking any road leads to heaven is to deny the Bible itself....read it carefully, take nothing out of context, and it is very clear what Jesus intended.
Might I respectfully suggest that you re-read John 3:16.