Alphabet is the company that owns all the products and companies and whatnot. They are the owners of google, android, chrome, google drive, chromium, a ton of stuff. Too much stuff.
Them getting broken up means that the different parts of their business will get split up. So google search and android and chrome etc. Will all be different companies.
The best in example I can think of is AT&T. They used to own pretty much the entire American telephone network, but they got broken up for being a monopoly. In this case, they were split up regionally, into over 20 different companies.
Lumping Philly into the Jersey area is how you start wars.