really? You're a state. See, I just did it...and it's as meaningless as it is when you say a county is a state. Counties are not like states in the sense that States are States, but I'm fine with whatever fantasy you want to create about that, silly as it might be. Counties and States compare only in that they are designated geopolitical entities with borders separating them from adjacent geopolitical entities. Counties have their own administrative systems but they don't make their own laws. The biggest difference is that counties are created to administratively carry out what the State requires while existing States created a Union wherein the cooperative coalition was a collective advantage in world existence to each member. Each state was free to make its own laws as long as those laws did not counter the Constitution and Federal power. Basically, a State operated as a separate entity with its own powers. A county does not.
"And, they don't need any electoral college to attain the diversity."
The EC does not exist to attain or deny diversity. The EC exists to represent the states and shun the dangers of a simple majority in national elections. The problem with a popular vote was well considered in the video you provided. A state, being sovereign, can institute whatever selection structure it cares to for selecting its electors, but those electors act on the popular vote within the State. What's the problem?.
Just for S&G, imagine if States had an EC as well, with each county selecting its own electors. You might end up seeing less overdevelopment and a return to the perfect balance of rural and urban population that North Carolina was once lauded for having, instead of the ever-increasing urbanization and disparity of population and wealth that exists today between city and country......and the ongoing degradation of what has made NC the coolest State in the Union.