That doesn’t sound like _the_ purpose of the acquisition, it was one of the arguments in the conversation but not the sole reason.

Given that YouTube has not been killed and Google has heavily invested in it and there were some legal minefields with Youtubes content early on that Google would then take on, I think it’s reasonable to conclude that they didn’t acquire it just to mess with Yahoo

This thread is hilarious.

Google only generates revenue to deny their competition that money! Their sole reason to exist is to be anti-competitive! Every time they breathe they're being anti-competitive.

That would be clearcut if they had acquired YT and then promptly buried it. Instead, they invested in it massively, and built it over several years into a profitable aspect of their business. That doesn't look "anti-competitive" to me (given the usual assumptions of 21st century US capitalism).