He’s referring to Jeremy Clarkson, also known as “Jezza”, a presenter on a British motoring show called Top Gear.
A “popular” “radio host” named Chris Evans (not Captain America) took over his presenter role once Jeremy was sacked for punching a producer over a food-related incident and the rest of the team (Richard Hammond and James May) left as a consequence.
Edit: Filthy Millennials.
The new Top Gear team fucking sucks.