Bad ideas must not be respected.
(To decide what ideas are good and what are bad we use reason, and open and honest debate. Religion is based on irrational/unprovable beliefs, so religion loses, and is classed as a bad idea - particularly given that it includes so much dangerous dogma. Religion knows it will lose so tries to avoid public scrutiny and tries to silence criticism.)
Having said that, the people who hold those bad ideas must be respected as fellow human beings, but we should try to engage with them, reason with them, criticise their bad ideas, ridicule their bad ideas, until we deconvert them, or at least limit the spread of their bad ideas.
I do not respect religion. I do respect the right of people to freely practice it, however morally or rationally objectionable I may find it, free of interference from the state, provided that practice does not immediately and directly infringe on the rights of other people.
+1
