Most of those diseases you mentioned are way more contagious than Ebola--if you can handle patients who have those diseases without infecting yourself, you should be able to handle Ebola patients. The reason the extra precautions are taken with Ebola is not because the disease is so contagious--it is not--but because the stakes are so high if someone makes a mistake and catches it.
I think part of the problem in Dallas was that the nurses saw so much hype about Ebola that they think it's some kind of supernatural monster--like the Andromeda Strain--and not a natural biological pathogen. So they overreacted, put on so much PPE that they could not work effectively and had difficulty removing it without propelling infectious debris from the PPE into their faces. And it wasn't until the CDC team arrived when the situation was improved.
When I have to deal with pathogens, I wear scrubs, lab coat, booties, bonnet, goggles, surgical mask, and double gloves. What do you wear?
Its not what you wear, its how you take it off. Medical personnel that are highly trained are infecting themselves in the hot zone regularly. If you are so bullet proof, why don’t you go over there and show em how its done.