My advise would be that horde players learn to solo in hard mode, which can be helped with here:
or you network your community together better on your server such as here:
What you want will come from bonds created between guilds and individuals on both sides (which won’t bind people who just want to troll). Those waiting for pve centered developers to fix this in wow or any other game are bound to be disappointed 99% of the time.
Your best bet is to form up with friends, fight, and become a much harder target. That’s my 2 cents, your mileage may vary.