On the Flock cameras, pretty much agreed.
Data centers are a bit more interesting. Sure the land itself is "find a willing landowner or handful in a sea of any land that would be equally ok", but then you have supporting infrastructure. Perhaps not as large of a route to secure, and more flexibility to make pretty sharp turns and such, but still lots of room for people to get in the way of a critical dependency. So surely the datacenters are having issues getting power to their facilities in the face of so many people around their property not wanting to give up their land right? No solution for that.
Oh yeah, if they won't sell their property to facilitate it, the government will just take it over: https://www.washingtonpost.com/ripple/2026/07/16/when-can-a-power-company-take-your-land-for-a-data-center/
So yes, in both datacenter and train, people can make it very hard to get things done. Somehow they find a way for the datacenters...
You don't have a car. Do you receive packages? If you called for medical help, how would it get to you? Most folks if they don't have a car at least want option for a bus, which requires roads. We can't build rail to reach every household (you said freeway next to your home, so that doesn't sound like it's a very downtown situation).
Perhaps there shouldn't be as many cars on it as you deal with, but the roads themselves..