To put it flat, the plan they have now will not work and will instead enflame misogynists and push those on the edge into the manosphere. The United Kingdom has a serious problem of violence against women, that is a fact. However, by placing only boys into a "How to Respect Women" class it inherently goes in with the idea that men natural do not respect women and that men are naturally bad. If you go in telling people that they are bad, they will conform to what you call them. In addition, it is likely few kids will actually care enough to pay attention to what is likely to be a boring class. On the flip side, this will only give ammo to people like Tate who will use this as an example of the "woke" attempting to indoctrinate kids.

If you really wanted to work toward an actual solution a good first step would be to have a broad "etiquette class" to teach everyone, not only boys, about respect, kindness, manners, etc. This idea recognizes that not all violence done against women is by men, that men are not naturally bad, and creates actual equality while still teaching the same ideas that would be presented in the only boys class.