best video to counter London system?


I play London a lot and the best counter is just solid chess. It's not like London is trick or gambit with a big flaw. It's a system and someone playing it well will adjust the system to whatever threats are on the board.

Some suggested videos here for defending against the London System (at the bottom of the article)...
Introduction To The London System & Jobava London System...
https://www.chess.com/blog/RussBell/the-london-system