The Most Bizarre UFO Event Never Documented

[Royal]

I wish they would not bring their virus pets with them.

You are alluding to a "War of the Worlds" scenario but in reverse.

Earth's pathogens ended up killing off the alien invaders in that story but it appears nothing stops humanoids from bringing pathogens here.

This can be the #1 argument on why they wouldn't physically step foot, or why they may use funky suits. But that would also assume that they could figure out star travel but couldn't figure out nano-tech to protect their immune system.

[Pigeon]

If nano-tech can be 100 % reliable. Their world didn't evolve into an idiocracy with a trump style leader running it.

[Pigeon]

This can be the #1 argument on why they wouldn't physically step foot, or why they may use funky suits

I think many UFO types miss that point. It may be quite valid.