No he’s saying that the US Congress is literally less functional: has more internal strife, gets gridlocked, fails to pass essential legislation, gets sucked up

No he’s saying that the US Congress is literally less functional: has more internal strife, gets gridlocked, fails to pass essential legislation, gets sucked up in scandals, etc. And the House of Commons is less genteel: people shout at each other, interrupt each-other, call each-other names, etc., rather than acting like polite and formal “gentlemen”.