Its not your problem or your clan, its ppl problem they always seeking for strong and big clans its very normal, i have this problem too but nothing i can do i get members from forums and then they leave i dont know why while my clan very active, we do wars always almost every 2 days, very high donation, we even have unique rules in war. but they leave before knowing all this they just leave after 10 mints after joining. and we very friendly, and no insults are allowed in our clan buz both genders are in clan and also women's and fathers with their children in clan. good luck