Really? I mean how valuable is a .com domain to an average user? As far as I can tell, most people don't type in URLs at all, they type the site name into Google or have a bookmark. They mostly don't even look at the url, they look at what the page says. If you want to send the link to someone, you copy the whole thing anyway. If you do a little word of mouth, you probably won't include any TLD at all, so Google is again your target destination. I don't have any knowledge on how Google weighs TLD, but I highly suspect that they don't care. It's about content, they might even favor specific TLDs like "mybusiness.usa" over "mybusiness.com"

Domains couldn't be more irrelevant right now, and adding more TLDs is only exacerbating the situation.

The average user types 'facebook' and through the magic of browser search gets to Facebook.com already. This just cuts out one step.