Uhm, do you have a source for countries not letting in people with autism? That sounds a bit far fetched tbh.

Wtf. Why do you think you would not be able to visit New Zealand?

It's immigration that's harder for autistics, not visiting. Getting a visitors visa shouldn't be an issue.

Wut? I really wanna know where you got this impression. Those border security shows are one of my mate's special interests, and never have we ever gotten the idea that neurodiversity is an exilable offence. I'm now imagining customs agents giving Reading the Mind in the Eyes tests