For example, insisting that destructive uploaders are perfectly okay with no downside to the person stepping inside one. I finally decided to update and rate more likely the possibility that others do not experience consciousness in the same way I do.

I'm inclined to disagree, but you might be one level beyond me. I believe many people empathize with a visceral sense of horror about (say) destructive teleportation, but intellectually come to the conclusion that those anxieties are baseless. These people may argue in a way that appears dense, but they are actually using second-level counterarguments. But perhaps you actually have counter-counter arguments, and I would appear to be dense when discussing those.

Argument in a nutshell:

Sleep might be a Lovecraftian horror. As light in front of you dims, your thoughts become more and more disorganized, and your sense of self fades until the continuation of consciousness that is you ceases to exist. A few hour later someone else wakes up who thinks that they were you. But they are not you. Every night billions of day-old consciousnesses die, replaced the next morning with billion more, deluded by borrowed memories into believing that they will live for more than a few hours. After a you next go to sleep, you will never see colors again.

People who have never slept would be terrified of sleeping. People who have never teleported are terrified of teleporting. The two fears are roughly equal in merit.