Hmm, this is an interesting question. It also sort of depends on which version of the character you look at and which writer holds the pen at the time. The biggest problem when trying to think of lore problems is always of course that there are different writers, over a decade now, who use these characters for certain plot points that may not mesh well with previous decisions or depictions of them.
If you take Genn from the Curse of the Worgen comics and Wolfheart book, so a time period fresh at the start of the cataclysm, he shows regret and remorse for building the wall - for what happened to his people but also a steadfast determination to do better and lead his people with pride in the future and aid the Alliance.
But from In game scenarios, outside of trying to be a guiding figure for Anduin, his focus has really been on vengeance against Sylvanas primarily while the Forsaken are thre as an extension of her.
Really that is what the Worgen/Gilneas and Forsaken biggest problem has been. They only really existed in the same breath as their leader and so were forced to follow their goal in game. It wasn’t “What are the Worgen/Forsaken doing” rather “What is Genn/Sylvanas doing”.
For Genn, if I were the writer, I would have him be warry of the Forsaken and Calia, but not openly hostile to them. Holding hands and skipping through a field of flowers is of course ridiculous, but a simple Cold War/Game of spys sort of situation. Rogues in the shadows watching, taking notes.
There would be splinter factions against this idea - Bloodfang Worgen/Gilneas liberation front in particular. Ivar Bloodfang not being the biggest fan of Greymane nor Darius Crowley, would be resistant to stop fighting after all that had happened. But Genn telling him outright to stop would also be poor as a leader. So I would have Ivar be the leader of the covert operations group that plays tag with/counters similar forsaken groups in the shadows.
Though with my idea, it would all honestly take place in a novel or something, not really a way to show it in game that isn’t an exciting conflict. One of those Gameplay > Lore situations. A ton of stuff happens in the game, but not all of it can be shown.
… also sorry for typing a lot while saying nothing.