If those against eminent domain had any self respect they would refuse to take advantage of the spoils of eminent domain by staying off state and federal highways, not accepting deliveries sent on public roads, disconnect from utiliies and refusing to use airports and railroads. Such use is taking advantage of stolen property.
You never took a course in logic, did you? Or if you did, you must have failed badly. Or is it that you cannot be bothered to read what people are actually saying?
To make it very simple for you, I will use small words. Eminent domain can be used by the government to take property for a public USE - such as the things you listed above. No one here has objected to that. However, Trump supports the government using eminent domain to take property from one private citizen in order to give it to another private party - such as Trump - so that the second private party can make money. THAT is what conservatives object to, and why they have a problem with Trump's position on this.