As a football obsessive I would say two reasons: firstly that the men's Premier League and Champions League are highly popular, so there's a greater familiarity with the players. I could tell you off the top of my head which clubs most of the Spanish men's team play for, let alone England. In the women's game I know Chloe Kelly and Ella Toone scored England's two goals in the Euro final 2022, but I honestly would have to look up which clubs they earn their bread and butter from.
Secondly, that the women's international game is still developing. The USA were previously very dominant and many of the games in the early stages of women's tournaments were quite one-sided as some of the teams weren't very good. That's becoming a thing of the past and the women's World Cup last year was the first time the USA didn't even make the semi-finals. Also, just my opinion, Nigeria were terrific and unfortunate to be knocked out by England. African teams doing well is a huge boost to the tournament and it looks like that might happen soon.
There's a third reason with England which is the history of unlucky failure and the struggle of very well-paid and famous young men to live up to the sky-high national expectation. It's become a perennial drama that sucks everyone in.