There is nothing wrong if MUSLIMS increse their population, coz they are indeed the best ppls on earth evolved for human kind, ALLAH says this in holy quran, 3:110. But the so called muslims, who have proven ALLAH to be lying (Naujobillah) by their actions. In fact they are continuously violating laws and commands of ALLAH which makes them biggest bunch of munafiqeen. And if these ppls will increse themselves, than only ALLAH is Malik of this world. They will wreck more and more havoc on muslims in first place than take on kuffar. ALLAH bachaye aise logo se.
I hope U will agree with me Khoji sahib.
Peace.