I respond the same way as you. I also tell them I am concerned about them and hope they find the real meaning of life.

I talk to their children about pagan festivals and great parties - they usually make their excuses and leave quickly.

"Why would anybody want to worship a blood god in this day and age?"

Sectarians surprise us by often overstepping the bounds of decency that exist in our society. After all, if someone tells us that he is busy or simply does not want to communicate, we try not to impose our society on him. Sectarians are going ahead. Even when you directly tell them "no", it doesn't stop them. They are not aimed at dialogue and attention to the interlocutor, their goal is disputes. In order to protect yourself from them, install a stronger door with a good peephole so that you can immediately see that it is them. You can find more information about good doors using quality websites.

Knockers don't worry me. It's the Walkers i worry about!

I don't answer the door

One should deal with them as Gene Wilder and his sidekick Marty Feldman did!

Perhaps one should deal with them as did Gene Wilder?