Exclusionism vs Inclusivism

In the 80s, we had to do street evangelism. That was one of the big things and it was a practical outworking of this idea because we believe that Romans 10, 9 says,. you have to believe Paul says that Jesus has Lord and God raised him from the dead. And so we were driven in our evangelism by that goal. And that's exclusivism. So to contrast the two views, exclusivism versus inclusivism is inclusivism just like the opposite? Is it just like a negation of exclusivism or does it come with it some like unique, I don't know, criteria?