I doubt Lewis would be in favor of pestering people to convert, and it is quite certain that God does not pester anyone.
Lewis spent much of his life writing books that were supposed to help people persuade other people to convert, and it is quite certain that nearly all of the pestering Lewis was familiar with was done in the name of his own God. I find it unlikely that, if an army of Lewis clones were made rulers of England, they would allow gay marriage, prostitution, and polygamy.
The name of the book is God in the Dock because it is about accusations against God--and this is most properly an accusation against the Christian (or Jewish, or Muslim) God. It would be hilariously ironic if Lewis were not using it that way.
Another month, another rationality quotes thread. The rules are: